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13630497 = 317326263
BaseRepresentation
bin110011111111…
…110000100001
3221122111112020
4303333300201
511442133442
61204052053
7223600026
oct63776041
927574466
1013630497
11776a881
124694029
132a931aa
141b4b54d
1512e39ec
hexcffc21

13630497 has 8 divisors (see below), whose sum is σ = 18279744. Its totient is φ = 9034128.

The previous prime is 13630469. The next prime is 13630553. The reversal of 13630497 is 79403631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13630497 - 26 = 13630433 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13630427) 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, 12613 + ... + 13650.

It is an arithmetic number, because the mean of its divisors is an integer number (2284968).

Almost surely, 213630497 is an apocalyptic number.

It is an amenable number.

13630497 is a deficient number, since it is larger than the sum of its proper divisors (4649247).

13630497 is a wasteful number, since it uses less digits than its factorization.

13630497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26439.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 13630497 is about 3691.9502976069. The cubic root of 13630497 is about 238.8749250737.

The spelling of 13630497 in words is "thirteen million, six hundred thirty thousand, four hundred ninety-seven".

Divisors: 1 3 173 519 26263 78789 4543499 13630497