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72468732830 = 25132317135271
BaseRepresentation
bin100001101111101111…
…0010001101110011110
320221001110201001122212
41003133132101232132
52141403443422310
653143000240422
75143562031314
oct1033736215636
9227043631585
1072468732830
112880878a63a
1212065770112
136aaba4a100
1437168480b4
151d42212205
hex10df791b9e

72468732830 has 48 divisors (see below), whose sum is σ = 141696337824. Its totient is φ = 26673079680.

The previous prime is 72468732823. The next prime is 72468732859. The reversal of 72468732830 is 3823786427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468095 + ... + 603365.

It is an arithmetic number, because the mean of its divisors is an integer number (2952007038).

Almost surely, 272468732830 is an apocalyptic number.

72468732830 is a deficient number, since it is larger than the sum of its proper divisors (69227604994).

72468732830 is a wasteful number, since it uses less digits than its factorization.

72468732830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135621 (or 135608 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 72468732830 in words is "seventy-two billion, four hundred sixty-eight million, seven hundred thirty-two thousand, eight hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 169 317 338 634 845 1585 1690 3170 4121 8242 20605 41210 53573 107146 135271 267865 270542 535730 676355 1352710 1758523 3517046 8792615 17585230 22860799 42880907 45721598 85761814 114303995 214404535 228607990 428809070 557451791 1114903582 2787258955 5574517910 7246873283 14493746566 36234366415 72468732830