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13372971 = 34457657
BaseRepresentation
bin110011000000…
…111000101011
3221011102021020
4303000320223
511410413341
61154343523
7221445153
oct63007053
927142236
1013372971
117604347
12458aba3
132a02c01
141ac1763
151292566
hexcc0e2b

13372971 has 4 divisors (see below), whose sum is σ = 17830632. Its totient is φ = 8915312.

The previous prime is 13372963. The next prime is 13372987. The reversal of 13372971 is 17927331.

It is a happy number.

13372971 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 is a cyclic number.

It is not a de Polignac number, because 13372971 - 23 = 13372963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13372901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2228826 + ... + 2228831.

It is an arithmetic number, because the mean of its divisors is an integer number (4457658).

Almost surely, 213372971 is an apocalyptic number.

13372971 is a deficient number, since it is larger than the sum of its proper divisors (4457661).

13372971 is an equidigital number, since it uses as much as digits as its factorization.

13372971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457660.

The product of its digits is 7938, while the sum is 33.

The square root of 13372971 is about 3656.9072998915. The cubic root of 13372971 is about 237.3609660854.

The spelling of 13372971 in words is "thirteen million, three hundred seventy-two thousand, nine hundred seventy-one".

Divisors: 1 3 4457657 13372971