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13881037896 = 23321131717963
BaseRepresentation
bin11001110110101111…
…11101010001001000
31022211101121210020200
430323113331101020
5211412021203041
610213222452200
71000661606145
oct147327752110
938741553220
1013881037896
115983536250
122834894060
131402a894bb
1495978b3cc
155639851b6
hex33b5fd448

13881037896 has 192 divisors, whose sum is σ = 42936791040. Its totient is φ = 4012848000.

The previous prime is 13881037873. The next prime is 13881037903. The reversal of 13881037896 is 69873018831.

13881037896 is a `hidden beast` number, since 1 + 388 + 103 + 78 + 96 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1739211 + ... + 1747173.

It is an arithmetic number, because the mean of its divisors is an integer number (223629120).

Almost surely, 213881037896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13881037896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21468395520).

13881037896 is an abundant number, since it is smaller than the sum of its proper divisors (29055753144).

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

13881037896 is a wasteful number, since it uses less digits than its factorization.

13881037896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088 (or 8081 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 13881037896 in words is "thirteen billion, eight hundred eighty-one million, thirty-seven thousand, eight hundred ninety-six".