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13007888 = 245771409
BaseRepresentation
bin110001100111…
…110000010000
3220110212110122
4301213300100
511312223023
61142445412
7215364605
oct61476020
926425418
1013007888
117385023
124433868
13290599a
141a286ac
15121e2c8
hexc67c10

13007888 has 20 divisors (see below), whose sum is σ = 25264380. Its totient is φ = 6488064.

The previous prime is 13007881. The next prime is 13007893. The reversal of 13007888 is 88870031.

It can be written as a sum of positive squares in 2 ways, for example, as 6697744 + 6310144 = 2588^2 + 2512^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13007881) 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, 8528 + ... + 9936.

It is an arithmetic number, because the mean of its divisors is an integer number (1263219).

Almost surely, 213007888 is an apocalyptic number.

It is an amenable number.

13007888 is a deficient number, since it is larger than the sum of its proper divisors (12256492).

13007888 is a wasteful number, since it uses less digits than its factorization.

13007888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994 (or 1988 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 13007888 is about 3606.6449783698. The cubic root of 13007888 is about 235.1810164079.

The spelling of 13007888 in words is "thirteen million, seven thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 577 1154 1409 2308 2818 4616 5636 9232 11272 22544 812993 1625986 3251972 6503944 13007888