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23401647909980 = 2253747672847841
BaseRepresentation
bin1010101001000100111101…
…11010010010110001011100
310001212011202002010122121122
411110202132322102301130
511031403033331104410
6121434322454150112
74633466436131204
oct524423672226134
9101764662118548
1023401647909980
11750264619028a
12275b490652338
1310099c5990a22
145ac90811d404
152a8ae59d7e55
hex15489ee92c5c

23401647909980 has 48 divisors (see below), whose sum is σ = 51545527479936. Its totient is φ = 8913888184320.

The previous prime is 23401647909929. The next prime is 23401647910001. The reversal of 23401647909980 is 8990974610432.

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, 336389141 + ... + 336458700.

It is an arithmetic number, because the mean of its divisors is an integer number (1073865155832).

Almost surely, 223401647909980 is an apocalyptic number.

23401647909980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23401647909980 is an abundant number, since it is smaller than the sum of its proper divisors (28143879569956).

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

23401647909980 is a wasteful number, since it uses less digits than its factorization.

23401647909980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672847934 (or 672847932 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 23401647909980 in words is "twenty-three trillion, four hundred one billion, six hundred forty-seven million, nine hundred nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 37 47 74 94 148 185 188 235 370 470 740 940 1739 3478 6956 8695 17390 34780 672847841 1345695682 2691391364 3364239205 6728478410 13456956820 24895370117 31623848527 49790740234 63247697054 99581480468 124476850585 126495394108 158119242635 248953701170 316238485270 497907402340 632476970540 1170082395499 2340164790998 4680329581996 5850411977495 11700823954990 23401647909980