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57244207 = 1910329251
BaseRepresentation
bin1101101001011…
…1101000101111
310222201022021211
43122113220233
5104123303312
65402535251
71263365506
oct332275057
9128638254
1057244207
112a349469
1217207527
13bb23817
14786183d
15505b3a7
hex3697a2f

57244207 has 8 divisors (see below), whose sum is σ = 60844160. Its totient is φ = 53703000.

The previous prime is 57244193. The next prime is 57244211. The reversal of 57244207 is 70244275.

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 57244207 - 219 = 56719919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57244237) 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, 12669 + ... + 16582.

It is an arithmetic number, because the mean of its divisors is an integer number (7605520).

Almost surely, 257244207 is an apocalyptic number.

57244207 is a deficient number, since it is larger than the sum of its proper divisors (3599953).

57244207 is a wasteful number, since it uses less digits than its factorization.

57244207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29373.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 57244207 is about 7565.9901533111. The cubic root of 57244207 is about 385.3989388109.

The spelling of 57244207 in words is "fifty-seven million, two hundred forty-four thousand, two hundred seven".

Divisors: 1 19 103 1957 29251 555769 3012853 57244207