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13697640803680 = 255233722185001
BaseRepresentation
bin1100011101010011101100…
…0000111010110101100000
31210111111000010202100001221
43013110323000322311200
53243410232021204210
645044335340104424
72612423210524501
oct307247300726540
953444003670057
1013697640803680
114401156156269
121652840235114
137848b3424cb2
14354d7dc8cba8
1518b4915781da
hexc753b03ad60

13697640803680 has 48 divisors (see below), whose sum is σ = 33767662338144. Its totient is φ = 5240836480000.

The previous prime is 13697640803603. The next prime is 13697640803683. The reversal of 13697640803680 is 8630804679631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13697640803683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1861088821 + ... + 1861096180.

It is an arithmetic number, because the mean of its divisors is an integer number (703492965378).

Almost surely, 213697640803680 is an apocalyptic number.

13697640803680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13697640803680 is an abundant number, since it is smaller than the sum of its proper divisors (20070021534464).

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

13697640803680 is a wasteful number, since it uses less digits than its factorization.

13697640803680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722185039 (or 3722185031 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 13697640803680 in words is "thirteen trillion, six hundred ninety-seven billion, six hundred forty million, eight hundred three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 80 92 115 160 184 230 368 460 736 920 1840 3680 3722185001 7444370002 14888740004 18610925005 29777480008 37221850010 59554960016 74443700020 85610255023 119109920032 148887400040 171220510046 297774800080 342441020092 428051275115 595549600160 684882040184 856102550230 1369764080368 1712205100460 2739528160736 3424410200920 6848820401840 13697640803680