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57020695 = 511404139
BaseRepresentation
bin1101100110000…
…1000100010111
310222021221200121
43121201010113
5104044130240
65354052411
71261445044
oct331410427
9128257617
1057020695
112a206546
121711a107
13ba75b74
1478041cb
15501504a
hex3661117

57020695 has 4 divisors (see below), whose sum is σ = 68424840. Its totient is φ = 45616552.

The previous prime is 57020693. The next prime is 57020701. The reversal of 57020695 is 59602075.

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 57020695 - 21 = 57020693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57020695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57020693) 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, 5702065 + ... + 5702074.

It is an arithmetic number, because the mean of its divisors is an integer number (17106210).

Almost surely, 257020695 is an apocalyptic number.

57020695 is a deficient number, since it is larger than the sum of its proper divisors (11404145).

57020695 is a wasteful number, since it uses less digits than its factorization.

57020695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11404144.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 57020695 is about 7551.2048707474. The cubic root of 57020695 is about 384.8966833581.

The spelling of 57020695 in words is "fifty-seven million, twenty thousand, six hundred ninety-five".

Divisors: 1 5 11404139 57020695