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31327672848 = 243919970949
BaseRepresentation
bin11101001011010001…
…100101101000010000
32222212021112200010120
4131023101211220100
51003124341012343
622220340430240
72156220553113
oct351321455020
988767480116
1031327672848
111231672231a
1260a36a8380
132c5346ba34
1417328d057a
15c35483683
hex74b465a10

31327672848 has 40 divisors (see below), whose sum is σ = 80939760000. Its totient is φ = 10441275264.

The previous prime is 31327672781. The next prime is 31327672867. The reversal of 31327672848 is 84827672313.

It is a super-2 number, since 2×313276728482 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31327672848.

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, 406078 + ... + 477026.

It is an arithmetic number, because the mean of its divisors is an integer number (2023494000).

Almost surely, 231327672848 is an apocalyptic number.

It is an amenable number.

31327672848 is an abundant number, since it is smaller than the sum of its proper divisors (49612087152).

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

31327672848 is a wasteful number, since it uses less digits than its factorization.

31327672848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80159 (or 80153 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The spelling of 31327672848 in words is "thirty-one billion, three hundred twenty-seven million, six hundred seventy-two thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 9199 18398 27597 36796 55194 70949 73592 110388 141898 147184 212847 220776 283796 425694 441552 567592 851388 1135184 1702776 3405552 652659851 1305319702 1957979553 2610639404 3915959106 5221278808 7831918212 10442557616 15663836424 31327672848