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13985860031 = 111397803217
BaseRepresentation
bin11010000011001111…
…10100100110111111
31100002200212022011222
431001213310212333
5212120340010111
610231445303555
71003403564063
oct150147644677
940080768158
1013985860031
115a27720710
122863a04bbb
13141b6cab30
14969675aa3
1556cc8d7db
hex3419f49bf

13985860031 has 8 divisors (see below), whose sum is σ = 16430940624. Its totient is φ = 11736385920.

The previous prime is 13985860019. The next prime is 13985860061. The reversal of 13985860031 is 13006858931.

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 13985860031 - 210 = 13985859007 is a prime.

It is a super-2 number, since 2×139858600312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13985860001) 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, 48901466 + ... + 48901751.

It is an arithmetic number, because the mean of its divisors is an integer number (2053867578).

Almost surely, 213985860031 is an apocalyptic number.

13985860031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13985860031 is a deficient number, since it is larger than the sum of its proper divisors (2445080593).

13985860031 is a wasteful number, since it uses less digits than its factorization.

13985860031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97803241.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 13985860031 in words is "thirteen billion, nine hundred eighty-five million, eight hundred sixty thousand, thirty-one".

Divisors: 1 11 13 143 97803217 1075835387 1271441821 13985860031