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13375889 = 171037639
BaseRepresentation
bin110011000001…
…100110010001
3221011120021022
4303001212101
511411012024
61154405225
7221456522
oct63014621
927146238
1013375889
11760655a
124590815
132a04337
141ac2849
15129335e
hexcc1991

13375889 has 8 divisors (see below), whose sum is σ = 14302080. Its totient is φ = 12465216.

The previous prime is 13375883. The next prime is 13375909. The reversal of 13375889 is 98857331.

It is a happy number.

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

It is not a de Polignac number, because 13375889 - 220 = 12327313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13375883) 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, 2069 + ... + 5570.

It is an arithmetic number, because the mean of its divisors is an integer number (1787760).

Almost surely, 213375889 is an apocalyptic number.

It is an amenable number.

13375889 is a deficient number, since it is larger than the sum of its proper divisors (926191).

13375889 is a wasteful number, since it uses less digits than its factorization.

13375889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7759.

The product of its digits is 181440, while the sum is 44.

The square root of 13375889 is about 3657.3062491402. The cubic root of 13375889 is about 237.3782289890.

The spelling of 13375889 in words is "thirteen million, three hundred seventy-five thousand, eight hundred eighty-nine".

Divisors: 1 17 103 1751 7639 129863 786817 13375889