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13468521 = 311408137
BaseRepresentation
bin110011011000…
…001101101001
3221100021100010
4303120031221
511421443041
61200402133
7222323553
oct63301551
927307303
1013468521
11766a110
124616349
132a37551
141b084d3
1512b0a16
hexcd8369

13468521 has 8 divisors (see below), whose sum is σ = 19590624. Its totient is φ = 8162720.

The previous prime is 13468517. The next prime is 13468537. The reversal of 13468521 is 12586431.

13468521 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 13468521 - 22 = 13468517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13468421) 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, 204036 + ... + 204101.

It is an arithmetic number, because the mean of its divisors is an integer number (2448828).

Almost surely, 213468521 is an apocalyptic number.

13468521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13468521 is a deficient number, since it is larger than the sum of its proper divisors (6122103).

13468521 is a wasteful number, since it uses less digits than its factorization.

13468521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408151.

The product of its digits is 5760, while the sum is 30.

The square root of 13468521 is about 3669.9483647594. The cubic root of 13468521 is about 237.9249404338.

The spelling of 13468521 in words is "thirteen million, four hundred sixty-eight thousand, five hundred twenty-one".

Divisors: 1 3 11 33 408137 1224411 4489507 13468521