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57672611672 = 23132879192617
BaseRepresentation
bin110101101101100011…
…100011011101011000
312111212022012020011112
4311231203203131120
51421103142033142
642254444115452
74111116052664
oct655543433530
9174768166145
1057672611672
112250575a835
12b216535b88
135591515a30
142b117358a4
151778271382
hexd6d8e3758

57672611672 has 32 divisors (see below), whose sum is σ = 116495366400. Its totient is φ = 26608744704.

The previous prime is 57672611641. The next prime is 57672611677. The reversal of 57672611672 is 27611627675.

It is a super-2 number, since 2×576726116722 (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 57672611672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57672611677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203108 + ... + 395724.

It is an arithmetic number, because the mean of its divisors is an integer number (3640480200).

Almost surely, 257672611672 is an apocalyptic number.

57672611672 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57672611672 is an abundant number, since it is smaller than the sum of its proper divisors (58822754728).

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

57672611672 is a wasteful number, since it uses less digits than its factorization.

57672611672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195515 (or 195511 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 50.

The spelling of 57672611672 in words is "fifty-seven billion, six hundred seventy-two million, six hundred eleven thousand, six hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 2879 5758 11516 23032 37427 74854 149708 192617 299416 385234 770468 1540936 2504021 5008042 10016084 20032168 554544343 1109088686 2218177372 4436354744 7209076459 14418152918 28836305836 57672611672