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76870944 = 253447631
BaseRepresentation
bin1001001010011…
…11010100100000
312100122110010000
410211033110200
5124134332234
611343340000
71622251353
oct445172440
9170573100
1076870944
113a434307
12218b1600
1312c06087
14a2d029a
156b36899
hex494f520

76870944 has 120 divisors (see below), whose sum is σ = 231251328. Its totient is φ = 25038720.

The previous prime is 76870933. The next prime is 76870951. The reversal of 76870944 is 44907867.

It is a super-2 number, since 2×768709442 = 11818284062902272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76870944.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 121509 + ... + 122139.

Almost surely, 276870944 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 76870944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115625664).

76870944 is an abundant number, since it is smaller than the sum of its proper divisors (154380384).

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

76870944 is a wasteful number, since it uses less digits than its factorization.

76870944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 76870944 is about 8767.6076554554. The cubic root of 76870944 is about 425.1942715061.

The spelling of 76870944 in words is "seventy-six million, eight hundred seventy thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 47 48 54 72 81 94 96 108 141 144 162 188 216 282 288 324 376 423 432 564 631 648 752 846 864 1128 1262 1269 1296 1504 1692 1893 2256 2524 2538 2592 3384 3786 3807 4512 5048 5076 5679 6768 7572 7614 10096 10152 11358 13536 15144 15228 17037 20192 20304 22716 29657 30288 30456 34074 40608 45432 51111 59314 60576 60912 68148 88971 90864 102222 118628 121824 136296 177942 181728 204444 237256 266913 272592 355884 408888 474512 533826 545184 711768 800739 817776 949024 1067652 1423536 1601478 1635552 2135304 2402217 2847072 3202956 4270608 4804434 6405912 8541216 9608868 12811824 19217736 25623648 38435472 76870944