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57036145 = 5471631489
BaseRepresentation
bin1101100110010…
…0110101110001
310222022201212211
43121210311301
5104100124040
65354252121
71261541065
oct331446561
9128281784
1057036145
112a217111
1217127041
13ba7cbca
147809aa5
1550198ea
hex3664d71

57036145 has 16 divisors (see below), whose sum is σ = 70375680. Its totient is φ = 44354304.

The previous prime is 57036143. The next prime is 57036149. The reversal of 57036145 is 54163075.

It is a cyclic number.

It is not a de Polignac number, because 57036145 - 21 = 57036143 is a prime.

It is a super-2 number, since 2×570361452 = 6506243672922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57036143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37561 + ... + 39049.

It is an arithmetic number, because the mean of its divisors is an integer number (4398480).

Almost surely, 257036145 is an apocalyptic number.

It is an amenable number.

57036145 is a deficient number, since it is larger than the sum of its proper divisors (13339535).

57036145 is a wasteful number, since it uses less digits than its factorization.

57036145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 57036145 is about 7552.2278170087. The cubic root of 57036145 is about 384.9314433503.

The spelling of 57036145 in words is "fifty-seven million, thirty-six thousand, one hundred forty-five".

Divisors: 1 5 47 163 235 815 1489 7445 7661 38305 69983 242707 349915 1213535 11407229 57036145