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57215852 = 2214303963
BaseRepresentation
bin1101101001000…
…0101101101100
310222122212101122
43122100231230
5104121401402
65402200112
71263220031
oct332205554
9128585348
1057215852
112a32a131
12171b3038
13bb13945
147855388
155052ca2
hex3690b6c

57215852 has 6 divisors (see below), whose sum is σ = 100127748. Its totient is φ = 28607924.

The previous prime is 57215849. The next prime is 57215857. The reversal of 57215852 is 25851275.

57215852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57215857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7151978 + ... + 7151985.

It is an arithmetic number, because the mean of its divisors is an integer number (16687958).

Almost surely, 257215852 is an apocalyptic number.

It is an amenable number.

57215852 is a deficient number, since it is larger than the sum of its proper divisors (42911896).

57215852 is a wasteful number, since it uses less digits than its factorization.

57215852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14303967 (or 14303965 counting only the distinct ones).

The product of its digits is 28000, while the sum is 35.

The square root of 57215852 is about 7564.1160752596. The cubic root of 57215852 is about 385.3352945733.

The spelling of 57215852 in words is "fifty-seven million, two hundred fifteen thousand, eight hundred fifty-two".

Divisors: 1 2 4 14303963 28607926 57215852