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67297033056 = 2531171897581
BaseRepresentation
bin111110101011001101…
…110011101101100000
320102201001020111021210
4332223031303231200
52100311020024211
650525452550120
74601453225361
oct765315635540
9212631214253
1067297033056
11265a4469aa0
1211061782340
136466462626
143385a4db68
151b3d1919a6
hexfab373b60

67297033056 has 96 divisors (see below), whose sum is σ = 195428733696. Its totient is φ = 20105792000.

The previous prime is 67297032977. The next prime is 67297033079. The reversal of 67297033056 is 65033079276.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 67297032996 and 67297033014.

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, 373815 + ... + 523766.

It is an arithmetic number, because the mean of its divisors is an integer number (2035715976).

Almost surely, 267297033056 is an apocalyptic number.

67297033056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

67297033056 is an abundant number, since it is smaller than the sum of its proper divisors (128131700640).

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

67297033056 is a wasteful number, since it uses less digits than its factorization.

67297033056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897676 (or 897668 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 48.

The spelling of 67297033056 in words is "sixty-seven billion, two hundred ninety-seven million, thirty-three thousand, fifty-six".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 71 88 96 132 142 176 213 264 284 352 426 528 568 781 852 1056 1136 1562 1704 2272 2343 3124 3408 4686 6248 6816 9372 12496 18744 24992 37488 74976 897581 1795162 2692743 3590324 5385486 7180648 9873391 10770972 14361296 19746782 21541944 28722592 29620173 39493564 43083888 59240346 63728251 78987128 86167776 118480692 127456502 157974256 191184753 236961384 254913004 315948512 382369506 473922768 509826008 701010761 764739012 947845536 1019652016 1402021522 1529478024 2039304032 2103032283 2804043044 3058956048 4206064566 5608086088 6117912096 8412129132 11216172176 16824258264 22432344352 33648516528 67297033056