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57865720045 = 571725720783
BaseRepresentation
bin110101111001000100…
…001101000011101101
312112100202120011001111
4311321010031003231
51422002111020140
642325543112021
74115652335110
oct657104150355
9175322504044
1057865720045
11225a4765a31
12b26b142611
1355c2529243
142b2d242577
15178a1b87ea
hexd7910d0ed

57865720045 has 24 divisors (see below), whose sum is σ = 84301473024. Its totient is φ = 37345264896.

The previous prime is 57865720037. The next prime is 57865720049. The reversal of 57865720045 is 54002756875.

It is a happy number.

57865720045 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 57865720045 - 23 = 57865720037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57865720049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2850277 + ... + 2870506.

It is an arithmetic number, because the mean of its divisors is an integer number (3512561376).

Almost surely, 257865720045 is an apocalyptic number.

It is an amenable number.

57865720045 is a deficient number, since it is larger than the sum of its proper divisors (26435752979).

57865720045 is a wasteful number, since it uses less digits than its factorization.

57865720045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5720829 (or 5720812 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 57865720045 in words is "fifty-seven billion, eight hundred sixty-five million, seven hundred twenty thousand, forty-five".

Divisors: 1 5 7 17 35 85 119 289 595 1445 2023 10115 5720783 28603915 40045481 97253311 200227405 486266555 680773177 1653306287 3403865885 8266531435 11573144009 57865720045