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13078077 = 334912491
BaseRepresentation
bin110001111000…
…111000111101
3220121102202020
4301320320331
511321444302
61144150353
7216106335
oct61707075
926542666
1013078077
117422831
1244683b9
13292b90c
141a460c5
151234ebc
hexc78e3d

13078077 has 8 divisors (see below), whose sum is σ = 17488800. Its totient is φ = 8693040.

The previous prime is 13078073. The next prime is 13078097. The reversal of 13078077 is 77087031.

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

It is not a de Polignac number, because 13078077 - 22 = 13078073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13078073) 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, 5199 + ... + 7292.

It is an arithmetic number, because the mean of its divisors is an integer number (2186100).

Almost surely, 213078077 is an apocalyptic number.

It is an amenable number.

13078077 is a deficient number, since it is larger than the sum of its proper divisors (4410723).

13078077 is a wasteful number, since it uses less digits than its factorization.

13078077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843.

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 13078077 is about 3616.3623988754. The cubic root of 13078077 is about 235.6032606876.

The spelling of 13078077 in words is "thirteen million, seventy-eight thousand, seventy-seven".

Divisors: 1 3 349 1047 12491 37473 4359359 13078077