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13078340 = 2251159447
BaseRepresentation
bin110001111000…
…111101000100
3220121110002222
4301320331010
511322001330
61144151512
7216110162
oct61707504
926543088
1013078340
117422a50
124468598
13292ba82
141a46232
1512350e5
hexc78f44

13078340 has 24 divisors (see below), whose sum is σ = 29961792. Its totient is φ = 4755680.

The previous prime is 13078337. The next prime is 13078349. The reversal of 13078340 is 4387031.

13078340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13078349) 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, 29504 + ... + 29943.

It is an arithmetic number, because the mean of its divisors is an integer number (1248408).

Almost surely, 213078340 is an apocalyptic number.

13078340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13078340 is an abundant number, since it is smaller than the sum of its proper divisors (16883452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13078340 is a wasteful number, since it uses less digits than its factorization.

13078340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59467 (or 59465 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 13078340 is about 3616.3987611988. The cubic root of 13078340 is about 235.6048400035.

The spelling of 13078340 in words is "thirteen million, seventy-eight thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 59447 118894 237788 297235 594470 653917 1188940 1307834 2615668 3269585 6539170 13078340