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57544230465 = 335426253559
BaseRepresentation
bin110101100101111001…
…110100011001000001
312111112100121210021000
4311211321310121001
51420322310333330
642234020322213
74104666613521
oct654571643101
9174470553230
1057544230465
112244a244067
12b19b543369
135570a46017
142adc677681
15176bd62560
hexd65e74641

57544230465 has 16 divisors (see below), whose sum is σ = 102300854400. Its totient is φ = 30690256176.

The previous prime is 57544230397. The next prime is 57544230481. The reversal of 57544230465 is 56403244575.

57544230465 is a `hidden beast` number, since 575 + 4 + 4 + 2 + 30 + 46 + 5 = 666.

57544230465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57544230465 - 28 = 57544230209 is a prime.

It is a super-2 number, since 2×575442304652 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57544230465.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213126645 + ... + 213126914.

It is an arithmetic number, because the mean of its divisors is an integer number (6393803400).

Almost surely, 257544230465 is an apocalyptic number.

It is an amenable number.

57544230465 is a deficient number, since it is larger than the sum of its proper divisors (44756623935).

57544230465 is a wasteful number, since it uses less digits than its factorization.

57544230465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426253573 (or 426253567 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 45.

The spelling of 57544230465 in words is "fifty-seven billion, five hundred forty-four million, two hundred thirty thousand, four hundred sixty-five".

Divisors: 1 3 5 9 15 27 45 135 426253559 1278760677 2131267795 3836282031 6393803385 11508846093 19181410155 57544230465