Search a number
-
+
57123072331 = 1317167255961
BaseRepresentation
bin110101001100110011…
…001110100101001011
312110110000010201220121
4311030303032211023
51413442001303311
642124133404111
74061364050323
oct651463164513
9173400121817
1057123072331
1122253537796
12b0a2499637
135504707120
142a9c766283
151744dbeb71
hexd4ccce94b

57123072331 has 8 divisors (see below), whose sum is σ = 61520978624. Its totient is φ = 52725712320.

The previous prime is 57123072319. The next prime is 57123072337. The reversal of 57123072331 is 13327032175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57123072331 - 225 = 57089517899 is a prime.

It is a super-2 number, since 2×571230723312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57123072337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95191 + ... + 351151.

It is an arithmetic number, because the mean of its divisors is an integer number (7690122328).

Almost surely, 257123072331 is an apocalyptic number.

57123072331 is a deficient number, since it is larger than the sum of its proper divisors (4397906293).

57123072331 is a wasteful number, since it uses less digits than its factorization.

57123072331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273141.

The product of its (nonzero) digits is 26460, while the sum is 34.

The spelling of 57123072331 in words is "fifty-seven billion, one hundred twenty-three million, seventy-two thousand, three hundred thirty-one".

Divisors: 1 13 17167 223171 255961 3327493 4394082487 57123072331