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23305047371772 = 22317139078214599
BaseRepresentation
bin1010100110010001000010…
…00100011110111111111100
310001111221101211011212021020
411103020201010132333330
511023312214111344042
6121322105125304140
74623506541116055
oct523104104367774
9101457354155236
1023305047371772
117475684753141
122744811265050
13100086c54914a
145a7d8276972c
152a633ee4b3ec
hex15322111effc

23305047371772 has 48 divisors (see below), whose sum is σ = 57581323027200. Its totient is φ = 7310860786432.

The previous prime is 23305047371737. The next prime is 23305047371833. The reversal of 23305047371772 is 27717374050332.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270272 + ... + 6944327.

It is an arithmetic number, because the mean of its divisors is an integer number (1199610896400).

Almost surely, 223305047371772 is an apocalyptic number.

It is an amenable number.

23305047371772 is an abundant number, since it is smaller than the sum of its proper divisors (34276275655428).

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

23305047371772 is a wasteful number, since it uses less digits than its factorization.

23305047371772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228530 (or 8228528 counting only the distinct ones).

The product of its (nonzero) digits is 5186160, while the sum is 51.

The spelling of 23305047371772 in words is "twenty-three trillion, three hundred five billion, forty-seven million, three hundred seventy-one thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 13907 27814 41721 55628 83442 166884 236419 472838 709257 945676 1418514 2837028 8214599 16429198 24643797 32858396 49287594 98575188 139648183 279296366 418944549 558592732 837889098 1675778196 114240428293 228480856586 342721284879 456961713172 685442569758 1370885139516 1942087280981 3884174561962 5826261842943 7768349123924 11652523685886 23305047371772