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57038999 = 255722307
BaseRepresentation
bin1101100110010…
…1100010010111
310222022212210112
43121211202113
5104100221444
65354313235
71261552313
oct331454227
9128285715
1057038999
112a219276
121712881b
13ba812b4
14780ab43
15501a69e
hex3665897

57038999 has 4 divisors (see below), whose sum is σ = 57063864. Its totient is φ = 57014136.

The previous prime is 57038983. The next prime is 57039013. The reversal of 57038999 is 99983075.

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 57038999 - 24 = 57038983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57038939) 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, 8597 + ... + 13710.

It is an arithmetic number, because the mean of its divisors is an integer number (14265966).

Almost surely, 257038999 is an apocalyptic number.

57038999 is a deficient number, since it is larger than the sum of its proper divisors (24865).

57038999 is a wasteful number, since it uses less digits than its factorization.

57038999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24864.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 57038999 is about 7552.4167655129. The cubic root of 57038999 is about 384.9378637002.

The spelling of 57038999 in words is "fifty-seven million, thirty-eight thousand, nine hundred ninety-nine".

Divisors: 1 2557 22307 57038999