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13407451385 = 54361216759
BaseRepresentation
bin11000111110010010…
…10111100011111001
31021121101111002200112
430133021113203321
5204424301421020
610054224114105
7653151312356
oct143711274371
937541432615
1013407451385
11576017a739
122722165935
131358921ab3
1491290d62d
155370d82c5
hex31f2578f9

13407451385 has 24 divisors (see below), whose sum is σ = 16738413120. Its totient is φ = 10304159040.

The previous prime is 13407451363. The next prime is 13407451411. The reversal of 13407451385 is 58315470431.

It is not a de Polignac number, because 13407451385 - 212 = 13407447289 is a prime.

It is a super-2 number, since 2×134074513852 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791636 + ... + 808394.

It is an arithmetic number, because the mean of its divisors is an integer number (697433880).

Almost surely, 213407451385 is an apocalyptic number.

It is an amenable number.

13407451385 is a deficient number, since it is larger than the sum of its proper divisors (3330961735).

13407451385 is an equidigital number, since it uses as much as digits as its factorization.

13407451385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16929 (or 16868 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 13407451385 in words is "thirteen billion, four hundred seven million, four hundred fifty-one thousand, three hundred eighty-five".

Divisors: 1 5 43 61 215 305 2623 3721 13115 16759 18605 83795 160003 720637 800015 1022299 3603185 5111495 43958857 62360239 219794285 311801195 2681490277 13407451385