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57389051 = 67856553
BaseRepresentation
bin1101101011101…
…0111111111011
310222222122222102
43122322333323
5104142422201
65410014015
71264541006
oct332727773
9128878872
1057389051
112a438275
121727730b
13bb74725
14789c53d
15508926b
hex36baffb

57389051 has 4 divisors (see below), whose sum is σ = 58245672. Its totient is φ = 56532432.

The previous prime is 57389041. The next prime is 57389077. The reversal of 57389051 is 15098375.

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 57389051 - 218 = 57126907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57388996 and 57389014.

It is not an unprimeable number, because it can be changed into a prime (57389041) 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, 428210 + ... + 428343.

It is an arithmetic number, because the mean of its divisors is an integer number (14561418).

Almost surely, 257389051 is an apocalyptic number.

57389051 is a deficient number, since it is larger than the sum of its proper divisors (856621).

57389051 is an equidigital number, since it uses as much as digits as its factorization.

57389051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856620.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 57389051 is about 7575.5561512010. The cubic root of 57389051 is about 385.7237210639.

The spelling of 57389051 in words is "fifty-seven million, three hundred eighty-nine thousand, fifty-one".

Divisors: 1 67 856553 57389051