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13908651996888 = 233611316993799
BaseRepresentation
bin1100101001100101110001…
…0000101111011011011000
31211020122122212112121000000
43022121130100233123120
53310334404402400023
645325314014213000
72633603235213555
oct312313420573330
954218585477000
1013908651996888
1144826984aa940
12168770b4b4160
1379b770a8a4bc
1436127a515a2c
15191be154d243
hexca65c42f6d8

13908651996888 has 224 divisors, whose sum is σ = 44030726784000. Its totient is φ = 4078782993600.

The previous prime is 13908651996859. The next prime is 13908651996937. The reversal of 13908651996888 is 88869915680931.

13908651996888 is a `hidden beast` number, since 1 + 3 + 9 + 0 + 8 + 6 + 519 + 96 + 8 + 8 + 8 = 666.

13908651996888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1508188 + ... + 5485611.

Almost surely, 213908651996888 is an apocalyptic number.

13908651996888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13908651996888 is an abundant number, since it is smaller than the sum of its proper divisors (30122074787112).

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

13908651996888 is a wasteful number, since it uses less digits than its factorization.

13908651996888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993865 (or 6993846 counting only the distinct ones).

The product of its (nonzero) digits is 1612431360, while the sum is 81.

The spelling of 13908651996888 in words is "thirteen trillion, nine hundred eight billion, six hundred fifty-one million, nine hundred ninety-six thousand, eight hundred eighty-eight".