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13399701631 = 174119224823
BaseRepresentation
bin11000111101010111…
…10011100001111111
31021120211220101000121
430132223303201333
5204420310423011
610053350035411
7653025404341
oct143653634177
937524811017
1013399701631
115756867188
12271b648b67
13135713a544
14911893291
155365a6e71
hex31eaf387f

13399701631 has 8 divisors (see below), whose sum is σ = 14533966944. Its totient is φ = 12303886080.

The previous prime is 13399701587. The next prime is 13399701641. The reversal of 13399701631 is 13610799331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13399701631 - 217 = 13399570559 is a prime.

It is a super-2 number, since 2×133997016312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13399701641) 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, 9611715 + ... + 9613108.

It is an arithmetic number, because the mean of its divisors is an integer number (1816745868).

Almost surely, 213399701631 is an apocalyptic number.

13399701631 is a deficient number, since it is larger than the sum of its proper divisors (1134265313).

13399701631 is a wasteful number, since it uses less digits than its factorization.

13399701631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19224881.

The product of its (nonzero) digits is 91854, while the sum is 43.

The spelling of 13399701631 in words is "thirteen billion, three hundred ninety-nine million, seven hundred one thousand, six hundred thirty-one".

Divisors: 1 17 41 697 19224823 326821991 788217743 13399701631