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13453885 = 517831907
BaseRepresentation
bin110011010100…
…101000111101
3221022112021001
4303110220331
511421011020
61200210301
7222233104
oct63245075
927275231
1013453885
11765a115
124609991
132a309a3
141b0303b
1512ab50a
hexcd4a3d

13453885 has 16 divisors (see below), whose sum is σ = 17309376. Its totient is φ = 10002688.

The previous prime is 13453879. The next prime is 13453901. The reversal of 13453885 is 58835431.

It is a cyclic number.

It is not a de Polignac number, because 13453885 - 23 = 13453877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6102 + ... + 8008.

It is an arithmetic number, because the mean of its divisors is an integer number (1081836).

Almost surely, 213453885 is an apocalyptic number.

It is an amenable number.

13453885 is a deficient number, since it is larger than the sum of its proper divisors (3855491).

13453885 is a wasteful number, since it uses less digits than its factorization.

13453885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its digits is 57600, while the sum is 37.

The square root of 13453885 is about 3667.9537892400. The cubic root of 13453885 is about 237.8387262765.

The spelling of 13453885 in words is "thirteen million, four hundred fifty-three thousand, eight hundred eighty-five".

Divisors: 1 5 17 83 85 415 1411 1907 7055 9535 32419 158281 162095 791405 2690777 13453885