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13717408031 = 32719419249
BaseRepresentation
bin11001100011001111…
…10000100100011111
31022101222201112021022
430301213300210133
5211043124024111
610145055354355
7663634021145
oct146147604437
938358645238
1013717408031
1158aa134758
1227a9b229bb
1313a7bc77b2
14941b55595
155544122db
hex3319f091f

13717408031 has 4 divisors (see below), whose sum is σ = 13717860000. Its totient is φ = 13716956064.

The previous prime is 13717408013. The next prime is 13717408043. The reversal of 13717408031 is 13080471731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13717408031 is a prime.

It is a super-2 number, since 2×137174080312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13717407982 and 13717408000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13717408631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176906 + ... + 242343.

It is an arithmetic number, because the mean of its divisors is an integer number (3429465000).

Almost surely, 213717408031 is an apocalyptic number.

13717408031 is a deficient number, since it is larger than the sum of its proper divisors (451969).

13717408031 is an equidigital number, since it uses as much as digits as its factorization.

13717408031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451968.

The product of its (nonzero) digits is 14112, while the sum is 35.

Adding to 13717408031 its reverse (13080471731), we get a palindrome (26797879762).

The spelling of 13717408031 in words is "thirteen billion, seven hundred seventeen million, four hundred eight thousand, thirty-one".

Divisors: 1 32719 419249 13717408031