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56210001564 = 22329274958757
BaseRepresentation
bin110100010110011000…
…001000111010011100
312101002101000221021210
4310112120020322130
51410104230022224
641453355224420
74026636062403
oct642630107234
9171071027253
1056210001564
1121925098152
12aa88748110
1353ba4b5272
142a133a663a
1516deb60429
hexd16608e9c

56210001564 has 48 divisors (see below), whose sum is σ = 135730980000. Its totient is φ = 18083686656.

The previous prime is 56210001559. The next prime is 56210001587. The reversal of 56210001564 is 46510001265.

It is a congruent number.

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, 927274 + ... + 986030.

It is an arithmetic number, because the mean of its divisors is an integer number (2827728750).

Almost surely, 256210001564 is an apocalyptic number.

It is an amenable number.

56210001564 is an abundant number, since it is smaller than the sum of its proper divisors (79520978436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56210001564 is a wasteful number, since it uses less digits than its factorization.

56210001564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61542 (or 61540 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 56210001564 in words is "fifty-six billion, two hundred ten million, one thousand, five hundred sixty-four".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 2749 5498 8247 10996 16494 32988 58757 79721 117514 159442 176271 235028 239163 318884 352542 478326 705084 956652 1703953 3407906 5111859 6815812 10223718 20447436 161522993 323045986 484568979 646091972 969137958 1938275916 4684166797 9368333594 14052500391 18736667188 28105000782 56210001564