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72036500312 = 23747226712073
BaseRepresentation
bin100001100010110110…
…1011100001101011000
320212221100101101010002
41003011231130031120
52140012321002222
653032040112132
75130063102230
oct1030555341530
9225840341102
1072036500312
11286067a9987
1211b64a65648
136a4033161a
1436b5292cc0
151d192d3392
hex10c5b5c358

72036500312 has 64 divisors (see below), whose sum is σ = 157730872320. Its totient is φ = 30200087808.

The previous prime is 72036500287. The next prime is 72036500339. The reversal of 72036500312 is 21300563027.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5960708 + ... + 5972780.

It is an arithmetic number, because the mean of its divisors is an integer number (2464544880).

Almost surely, 272036500312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72036500312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78865436160).

72036500312 is an abundant number, since it is smaller than the sum of its proper divisors (85694372008).

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

72036500312 is a wasteful number, since it uses less digits than its factorization.

72036500312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14400 (or 14396 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 72036500312 in words is "seventy-two billion, thirty-six million, five hundred thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 47 56 94 188 329 376 658 1316 2267 2632 4534 9068 12073 15869 18136 24146 31738 48292 63476 84511 96584 106549 126952 169022 213098 338044 426196 567431 676088 745843 852392 1134862 1491686 2269724 2983372 3972017 4539448 5966744 7944034 15888068 27369491 31776136 54738982 109477964 191586437 218955928 383172874 766345748 1286366077 1532691496 2572732154 5145464308 9004562539 10290928616 18009125078 36018250156 72036500312