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57060631 = 232480897
BaseRepresentation
bin1101100110101…
…0110100010111
310222100222110201
43121222310113
5104101420011
65355001331
71262002345
oct331526427
9128328421
1057060631
112a233551
1217139247
13ba8b0b4
147814995
155021cc1
hex366ad17

57060631 has 4 divisors (see below), whose sum is σ = 59541552. Its totient is φ = 54579712.

The previous prime is 57060557. The next prime is 57060649. The reversal of 57060631 is 13606075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57060631 - 211 = 57058583 is a prime.

It is a super-2 number, since 2×570606312 = 6511831220236322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57060631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57060691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240426 + ... + 1240471.

It is an arithmetic number, because the mean of its divisors is an integer number (14885388).

Almost surely, 257060631 is an apocalyptic number.

57060631 is a deficient number, since it is larger than the sum of its proper divisors (2480921).

57060631 is a wasteful number, since it uses less digits than its factorization.

57060631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480920.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 57060631 is about 7553.8487541120. The cubic root of 57060631 is about 384.9865200205.

The spelling of 57060631 in words is "fifty-seven million, sixty thousand, six hundred thirty-one".

Divisors: 1 23 2480897 57060631