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31799448976 = 2410924092
BaseRepresentation
bin11101100111011001…
…010001010110010000
310001002011021101022111
4131213121101112100
51010111124331401
622335232315104
72204006566531
oct354731212620
9101064241274
1031799448976
1112538a61749
1261b56a2a94
132cca1213c9
14177941a688
15c61ac3e51
hex767651590

31799448976 has 45 divisors (see below), whose sum is σ = 62334266211. Its totient is φ = 15715337472.

The previous prime is 31799448899. The next prime is 31799448983. The reversal of 31799448976 is 67984499713.

The square root of 31799448976 is 178324.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 12887698576 + 18911750400 = 113524^2 + 137520^2 .

It is a super-2 number, since 2×317994489762 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 77749060 + ... + 77749468.

Almost surely, 231799448976 is an apocalyptic number.

31799448976 is the 178324-th square number.

It is an amenable number.

31799448976 is a deficient number, since it is larger than the sum of its proper divisors (30534817235).

31799448976 is an frugal number, since it uses more digits than its factorization.

31799448976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 520 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 67.

The spelling of 31799448976 in words is "thirty-one billion, seven hundred ninety-nine million, four hundred forty-eight thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 109 218 409 436 818 872 1636 1744 3272 6544 11881 23762 44581 47524 89162 95048 167281 178324 190096 334562 356648 669124 713296 1338248 2676496 4859329 9718658 18233629 19437316 36467258 38874632 72934516 77749264 145869032 291738064 1987465561 3974931122 7949862244 15899724488 31799448976