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72988586896 = 241722921372
BaseRepresentation
bin100001111111001110…
…1010111001110010000
320222101200220101101011
41003332131113032100
52143440034240041
653310330420304
75162503515661
oct1037635271620
9228350811334
1072988586896
1128a551776a5
121218b891694
136b62664074
1437658cb368
151d72b9ce81
hex10fe757390

72988586896 has 135 divisors (see below), whose sum is σ = 156725927449. Its totient is φ = 32921104384.

The previous prime is 72988586873. The next prime is 72988586911. The reversal of 72988586896 is 69868588927.

The square root of 72988586896 is 270164.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 9927332496 + 63061254400 = 99636^2 + 251120^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 532763340 + ... + 532763476.

Almost surely, 272988586896 is an apocalyptic number.

72988586896 is the 270164-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72988586896

72988586896 is an abundant number, since it is smaller than the sum of its proper divisors (83737340553).

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

72988586896 is a wasteful number, since it uses less digits than its factorization.

72988586896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 185 counting only the distinct ones).

The product of its digits is 836075520, while the sum is 76.

The spelling of 72988586896 in words is "seventy-two billion, nine hundred eighty-eight million, five hundred eighty-six thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 17 29 34 58 68 116 136 137 232 272 274 289 464 493 548 578 841 986 1096 1156 1682 1972 2192 2312 2329 3364 3944 3973 4624 4658 6728 7888 7946 8381 9316 13456 14297 15892 16762 18632 18769 28594 31784 33524 37264 37538 39593 57188 63568 67048 67541 75076 79186 114376 115217 134096 135082 150152 158372 228752 230434 243049 270164 300304 316744 319073 460868 486098 540328 544301 633488 638146 921736 972196 1080656 1088602 1148197 1276292 1843472 1944392 1958689 2177204 2296394 2552584 3888784 3917378 4354408 4592788 5105168 5424241 7834756 8708816 9185576 9253117 10848482 15669512 15784729 18371152 18506234 21696964 31339024 31569458 33297713 37012468 43393928 63138916 66595426 74024936 86787856 126277832 133190852 148049872 157302989 252555664 266381704 268340393 314605978 532763408 536680786 629211956 1073361572 1258423912 2146723144 2516847824 4293446288 4561786681 9123573362 18247146724 36494293448 72988586896