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512050442420 = 2251117544125163
BaseRepresentation
bin1110111001110001001…
…01011011000010110100
31210221200200020121120202
413130320211123002310
531342134403124140
61031122134020032
751665041642466
oct7347045330264
91727620217522
10512050442420
11188183142220
12832a47a7618
133939489418a
141aad7812136
15d4bda19915
hex773895b0b4

512050442420 has 96 divisors (see below), whose sum is σ = 1242342251136. Its totient is φ = 175208038400.

The previous prime is 512050442419. The next prime is 512050442521. The reversal of 512050442420 is 24244050215.

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, 20336759 + ... + 20361921.

It is an arithmetic number, because the mean of its divisors is an integer number (12941065116).

Almost surely, 2512050442420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512050442420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621171125568).

512050442420 is an abundant number, since it is smaller than the sum of its proper divisors (730291808716).

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

512050442420 is a wasteful number, since it uses less digits than its factorization.

512050442420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30641 (or 30639 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 512050442420 its reverse (24244050215), we get a palindrome (536294492635).

The spelling of 512050442420 in words is "five hundred twelve billion, fifty million, four hundred forty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 17 20 22 34 44 55 68 85 110 170 187 220 340 374 748 935 1870 3740 5441 10882 21764 25163 27205 50326 54410 59851 92497 100652 108820 119702 125815 184994 239404 251630 276793 299255 369988 427771 462485 503260 553586 598510 855542 924970 1017467 1107172 1197020 1383965 1711084 1849940 2034934 2138855 2767930 4069868 4277710 4705481 5087335 5535860 8555420 9410962 10174670 18821924 20349340 23527405 47054810 94109620 136911883 273823766 547647532 684559415 1369118830 1506030713 2327502011 2738237660 3012061426 4655004022 6024122852 7530153565 9310008044 11637510055 15060307130 23275020110 25602522121 30120614260 46550040220 51205044242 102410088484 128012610605 256025221210 512050442420