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57073037 = 722213671
BaseRepresentation
bin1101100110110…
…1110110001101
310222101121111012
43121231312031
5104102314122
65355135005
71262053460
oct331556615
9128347435
1057073037
112a2418aa
1217144465
13ba93938
1478192d7
1550257e2
hex366dd8d

57073037 has 8 divisors (see below), whose sum is σ = 65273472. Its totient is φ = 48884400.

The previous prime is 57073033. The next prime is 57073039. The reversal of 57073037 is 73037075.

It is a happy number.

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 57073037 - 22 = 57073033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57072994 and 57073012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57073031) 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, 13712 + ... + 17382.

It is an arithmetic number, because the mean of its divisors is an integer number (8159184).

Almost surely, 257073037 is an apocalyptic number.

It is an amenable number.

57073037 is a deficient number, since it is larger than the sum of its proper divisors (8200435).

57073037 is a wasteful number, since it uses less digits than its factorization.

57073037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5899.

The product of its (nonzero) digits is 15435, while the sum is 32.

The square root of 57073037 is about 7554.6698802793. The cubic root of 57073037 is about 385.0144189798.

The spelling of 57073037 in words is "fifty-seven million, seventy-three thousand, thirty-seven".

Divisors: 1 7 2221 3671 15547 25697 8153291 57073037