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13020475 = 521340063
BaseRepresentation
bin110001101010…
…110100111011
3220111111201211
4301222310323
511313123400
61143023551
7215446366
oct61526473
926444654
1013020475
117393526
12443abb7
13290b630
141a2d0dd
151222dba
hexc6ad3b

13020475 has 12 divisors (see below), whose sum is σ = 17387776. Its totient is φ = 9614880.

The previous prime is 13020467. The next prime is 13020503. The reversal of 13020475 is 57402031.

It is not a de Polignac number, because 13020475 - 23 = 13020467 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19707 + ... + 20356.

Almost surely, 213020475 is an apocalyptic number.

13020475 is a deficient number, since it is larger than the sum of its proper divisors (4367301).

13020475 is a wasteful number, since it uses less digits than its factorization.

13020475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40086 (or 40081 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 13020475 is about 3608.3895299704. The cubic root of 13020475 is about 235.2568490912.

The spelling of 13020475 in words is "thirteen million, twenty thousand, four hundred seventy-five".

Divisors: 1 5 13 25 65 325 40063 200315 520819 1001575 2604095 13020475