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442213031480 = 235117315598831
BaseRepresentation
bin1100110111101011111…
…00110101111000111000
31120021102120211112222012
412123311330311320320
524221123014001410
6535052211545052
743643310514433
oct6336574657070
91507376745865
10442213031480
111605a5800780
12718542bb188
133291503588c
141759064081a
15b782823605
hex66f5f35e38

442213031480 has 128 divisors (see below), whose sum is σ = 1101131366400. Its totient is φ = 158482252800.

The previous prime is 442213031423. The next prime is 442213031503. The reversal of 442213031480 is 84130312244.

It is a super-3 number, since 3×4422130314803 (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50070665 + ... + 50079495.

It is an arithmetic number, because the mean of its divisors is an integer number (8602588800).

Almost surely, 2442213031480 is an apocalyptic number.

442213031480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442213031480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550565683200).

442213031480 is an abundant number, since it is smaller than the sum of its proper divisors (658918334920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442213031480 is a wasteful number, since it uses less digits than its factorization.

442213031480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10485 (or 10481 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 442213031480 in words is "four hundred forty-two billion, two hundred thirteen million, thirty-one thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 73 88 110 146 220 292 365 440 584 730 803 1460 1559 1606 2920 3118 3212 4015 6236 6424 7795 8030 8831 12472 15590 16060 17149 17662 31180 32120 34298 35324 44155 62360 68596 70648 85745 88310 97141 113807 137192 171490 176620 194282 227614 342980 353240 388564 455228 485705 569035 644663 685960 777128 910456 971410 1138070 1251877 1289326 1942820 2276140 2503754 2578652 3223315 3885640 4552280 5007508 5157304 6259385 6446630 7091293 10015016 12518770 12893260 13767529 14182586 25037540 25786520 27535058 28365172 35456465 50075080 55070116 56730344 68837645 70912930 110140232 137675290 141825860 151442819 275350580 283651720 302885638 550701160 605771276 757214095 1005029617 1211542552 1514428190 2010059234 3028856380 4020118468 5025148085 6057712760 8040236936 10050296170 11055325787 20100592340 22110651574 40201184680 44221303148 55276628935 88442606296 110553257870 221106515740 442213031480