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13396389 = 310914093
BaseRepresentation
bin110011000110…
…100110100101
3221012121101120
4303012212211
511412141024
61155044153
7221603346
oct63064645
927177346
1013396389
11761a9a6
1245a0659
132a10776
141aca0cd
151299479
hexcc69a5

13396389 has 8 divisors (see below), whose sum is σ = 17882592. Its totient is φ = 8920560.

The previous prime is 13396367. The next prime is 13396421. The reversal of 13396389 is 98369331.

13396389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13396389 - 28 = 13396133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13396389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13396319) 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, 1227 + ... + 5319.

It is an arithmetic number, because the mean of its divisors is an integer number (2235324).

Almost surely, 213396389 is an apocalyptic number.

It is an amenable number.

13396389 is a deficient number, since it is larger than the sum of its proper divisors (4486203).

13396389 is a wasteful number, since it uses less digits than its factorization.

13396389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187.

The product of its digits is 104976, while the sum is 42.

The square root of 13396389 is about 3660.1077852981. The cubic root of 13396389 is about 237.4994363791.

The spelling of 13396389 in words is "thirteen million, three hundred ninety-six thousand, three hundred eighty-nine".

Divisors: 1 3 1091 3273 4093 12279 4465463 13396389