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13000386 = 23736317
BaseRepresentation
bin110001100101…
…111011000010
3220110111011210
4301211323002
511312003021
61142350550
7215334000
oct61457302
926414153
1013000386
11737a423
12442b456
132902449
141a25a70
15121be76
hexc65ec2

13000386 has 32 divisors (see below), whose sum is σ = 30326400. Its totient is φ = 3713808.

The previous prime is 13000367. The next prime is 13000397. The reversal of 13000386 is 68300031.

13000386 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×130003862 = 338020072297992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

13000386 is strictly pandigital in base 8.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1101 + ... + 5216.

It is an arithmetic number, because the mean of its divisors is an integer number (947700).

Almost surely, 213000386 is an apocalyptic number.

13000386 is an abundant number, since it is smaller than the sum of its proper divisors (17326014).

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

13000386 is an equidigital number, since it uses as much as digits as its factorization.

13000386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6343 (or 6329 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13000386 is about 3605.6048036356. The cubic root of 13000386 is about 235.1357959675.

The spelling of 13000386 in words is "thirteen million, three hundred eighty-six", and thus it is an aban number.

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 343 686 1029 2058 6317 12634 18951 37902 44219 88438 132657 265314 309533 619066 928599 1857198 2166731 4333462 6500193 13000386