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442331360 = 25513919889
BaseRepresentation
bin11010010111010…
…111000011100000
31010211022202112222
4122113113003200
51401214100420
6111520410212
713650516542
oct3227270340
91124282488
10442331360
11207759109
12104176968
1370843343
1442a63692
1528c76225
hex1a5d70e0

442331360 has 48 divisors (see below), whose sum is σ = 1052578800. Its totient is φ = 175650816.

The previous prime is 442331359. The next prime is 442331371. The reversal of 442331360 is 63133244.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12296 + ... + 32184.

It is an arithmetic number, because the mean of its divisors is an integer number (21928725).

Almost surely, 2442331360 is an apocalyptic number.

442331360 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 442331360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526289400).

442331360 is an abundant number, since it is smaller than the sum of its proper divisors (610247440).

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

442331360 is a wasteful number, since it uses less digits than its factorization.

442331360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20043 (or 20035 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 442331360 is about 21031.6751591498. The cubic root of 442331360 is about 761.9314676254.

The spelling of 442331360 in words is "four hundred forty-two million, three hundred thirty-one thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 139 160 278 556 695 1112 1390 2224 2780 4448 5560 11120 19889 22240 39778 79556 99445 159112 198890 318224 397780 636448 795560 1591120 2764571 3182240 5529142 11058284 13822855 22116568 27645710 44233136 55291420 88466272 110582840 221165680 442331360