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57445017 = 372735477
BaseRepresentation
bin1101101100100…
…0101010011001
311000002111202020
43123020222121
5104201220032
65411125053
71265163120
oct333105231
9130074666
1057445017
112a476323
12172a3789
13bb94046
1478b4ab7
15509ab2c
hex36c8a99

57445017 has 8 divisors (see below), whose sum is σ = 87535296. Its totient is φ = 32825712.

The previous prime is 57444997. The next prime is 57445039. The reversal of 57445017 is 71054475.

57445017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-57445017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57445067) 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 in 7 ways as a sum of consecutive naturals, for example, 1367718 + ... + 1367759.

It is an arithmetic number, because the mean of its divisors is an integer number (10941912).

Almost surely, 257445017 is an apocalyptic number.

It is an amenable number.

57445017 is a deficient number, since it is larger than the sum of its proper divisors (30090279).

57445017 is a wasteful number, since it uses less digits than its factorization.

57445017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735487.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 57445017 is about 7579.2491052874. The cubic root of 57445017 is about 385.8490666935.

The spelling of 57445017 in words is "fifty-seven million, four hundred forty-five thousand, seventeen".

Divisors: 1 3 7 21 2735477 8206431 19148339 57445017