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13372949 = 40133349
BaseRepresentation
bin110011000000…
…111000010101
3221011102020102
4303000320111
511410413244
61154343445
7221445122
oct63007025
927142212
1013372949
117604327
12458ab85
132a02bb5
141ac1749
15129254e
hexcc0e15

13372949 has 4 divisors (see below), whose sum is σ = 13406700. Its totient is φ = 13339200.

The previous prime is 13372937. The next prime is 13372963. The reversal of 13372949 is 94927331.

13372949 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13140625 + 232324 = 3625^2 + 482^2 .

It is a cyclic number.

It is not a de Polignac number, because 13372949 - 212 = 13368853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13372549) 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, 16274 + ... + 17075.

It is an arithmetic number, because the mean of its divisors is an integer number (3351675).

Almost surely, 213372949 is an apocalyptic number.

It is an amenable number.

13372949 is a deficient number, since it is larger than the sum of its proper divisors (33751).

13372949 is an equidigital number, since it uses as much as digits as its factorization.

13372949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33750.

The product of its digits is 40824, while the sum is 38.

The square root of 13372949 is about 3656.9042918841. The cubic root of 13372949 is about 237.3608359237.

The spelling of 13372949 in words is "thirteen million, three hundred seventy-two thousand, nine hundred forty-nine".

Divisors: 1 401 33349 13372949