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57398929 = 776910663
BaseRepresentation
bin1101101011110…
…1011010010001
311000000011112021
43122331122101
5104143231204
65410131441
71264611550
oct332753221
9130004467
1057398929
112a444735
1217280b81
13bb79083
1478a1d97
15508c154
hex36bd691

57398929 has 8 divisors (see below), whose sum is σ = 65690240. Its totient is φ = 49130496.

The previous prime is 57398927. The next prime is 57398959. The reversal of 57398929 is 92989375.

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 57398929 - 21 = 57398927 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57398921) 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, 52 + ... + 10714.

It is an arithmetic number, because the mean of its divisors is an integer number (8211280).

Almost surely, 257398929 is an apocalyptic number.

It is an amenable number.

57398929 is a deficient number, since it is larger than the sum of its proper divisors (8291311).

57398929 is a wasteful number, since it uses less digits than its factorization.

57398929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11439.

The product of its digits is 1224720, while the sum is 52.

The square root of 57398929 is about 7576.2080884833. The cubic root of 57398929 is about 385.7458504902.

The spelling of 57398929 in words is "fifty-seven million, three hundred ninety-eight thousand, nine hundred twenty-nine".

Divisors: 1 7 769 5383 10663 74641 8199847 57398929