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72936572940 = 223257115262379
BaseRepresentation
bin100001111101101011…
…0111100100000001100
320222021002000210122100
41003323112330200030
52143333230313230
653301231515100
75161302432540
oct1037326744014
9228232023570
1072936572940
1128a28880860
1212176388a90
136b5495208a
14375ca2ba20
151d6d326660
hex10fb5bc80c

72936572940 has 144 divisors (see below), whose sum is σ = 275832910080. Its totient is φ = 15155648640.

The previous prime is 72936572921. The next prime is 72936572957. The reversal of 72936572940 is 4927563927.

72936572940 is a `hidden beast` number, since 7 + 29 + 3 + 6 + 572 + 9 + 40 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2617330 + ... + 2645049.

It is an arithmetic number, because the mean of its divisors is an integer number (1915506320).

Almost surely, 272936572940 is an apocalyptic number.

72936572940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72936572940 is an abundant number, since it is smaller than the sum of its proper divisors (202896337140).

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

72936572940 is a wasteful number, since it uses less digits than its factorization.

72936572940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262412 (or 5262407 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 72936572940 in words is "seventy-two billion, nine hundred thirty-six million, five hundred seventy-two thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 28 30 33 35 36 42 44 45 55 60 63 66 70 77 84 90 99 105 110 126 132 140 154 165 180 198 210 220 231 252 308 315 330 385 396 420 462 495 630 660 693 770 924 990 1155 1260 1386 1540 1980 2310 2772 3465 4620 6930 13860 5262379 10524758 15787137 21049516 26311895 31574274 36836653 47361411 52623790 57886169 63148548 73673306 78935685 94722822 105247580 110509959 115772338 147346612 157871370 173658507 184183265 189445644 221019918 231544676 236807055 289430845 315742740 331529877 347317014 368366530 405203183 442039836 473614110 520975521 552549795 578861690 663059754 694634028 736733060 810406366 868292535 947228220 1041951042 1105099590 1157723380 1215609549 1326119508 1620812732 1657649385 1736585070 2026015915 2083902084 2210199180 2431219098 2604877605 3315298770 3473170140 3646828647 4052031830 4862438196 5209755210 6078047745 6630597540 7293657294 8104063660 10419510420 12156095490 14587314588 18234143235 24312190980 36468286470 72936572940