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13398371 = 71914053
BaseRepresentation
bin110011000111…
…000101100011
3221012201002222
4303013011203
511412221441
61155101255
7221612210
oct63070543
927181088
1013398371
117621438
1245a182b
132a1163c
141acab07
151299d4b
hexcc7163

13398371 has 4 divisors (see below), whose sum is σ = 15312432. Its totient is φ = 11484312.

The previous prime is 13398323. The next prime is 13398379. The reversal of 13398371 is 17389331.

13398371 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 17389331 = 61285071.

It is a de Polignac number, because none of the positive numbers 2k-13398371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13398379) 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, 957020 + ... + 957033.

It is an arithmetic number, because the mean of its divisors is an integer number (3828108).

Almost surely, 213398371 is an apocalyptic number.

13398371 is a deficient number, since it is larger than the sum of its proper divisors (1914061).

13398371 is an equidigital number, since it uses as much as digits as its factorization.

13398371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914060.

The product of its digits is 13608, while the sum is 35.

The square root of 13398371 is about 3660.3785323379. The cubic root of 13398371 is about 237.5111485071.

The spelling of 13398371 in words is "thirteen million, three hundred ninety-eight thousand, three hundred seventy-one".

Divisors: 1 7 1914053 13398371