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13747709868 = 22323127392209
BaseRepresentation
bin11001100110110110…
…10110011110101100
31022111002202000120120
430303123112132230
5211123403203433
610152101044540
7664452414534
oct146333263654
938432660516
1013747709868
1159152509a2
1227b80b6750
1313b1276c89
14945ba24c4
15556dea7b3
hex3336d67ac

13747709868 has 48 divisors (see below), whose sum is σ = 33736335360. Its totient is φ = 4348802304.

The previous prime is 13747709861. The next prime is 13747709879. The reversal of 13747709868 is 86890774731.

It is a super-2 number, since 2×137477098682 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13747709861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161053 + ... + 231156.

It is an arithmetic number, because the mean of its divisors is an integer number (702840320).

Almost surely, 213747709868 is an apocalyptic number.

It is an amenable number.

13747709868 is an abundant number, since it is smaller than the sum of its proper divisors (19988625492).

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

13747709868 is a wasteful number, since it uses less digits than its factorization.

13747709868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392366 (or 392364 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 13747709868 in words is "thirteen billion, seven hundred forty-seven million, seven hundred nine thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 127 138 254 276 381 508 762 1524 2921 5842 8763 11684 17526 35052 392209 784418 1176627 1568836 2353254 4706508 9020807 18041614 27062421 36083228 49810543 54124842 99621086 108249684 149431629 199242172 298863258 597726516 1145642489 2291284978 3436927467 4582569956 6873854934 13747709868