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13055418 = 23526863
BaseRepresentation
bin110001110011…
…010110111010
3220120021200000
4301303112322
511320233133
61143453430
7215653305
oct61632672
926507600
1013055418
117407802
124457276
1329214cc
141a3bb3c
15122d413
hexc735ba

13055418 has 24 divisors (see below), whose sum is σ = 29335488. Its totient is φ = 4351644.

The previous prime is 13055417. The next prime is 13055431. The reversal of 13055418 is 81455031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13055391 and 13055400.

It is not an unprimeable number, because it can be changed into a prime (13055417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12946 + ... + 13917.

It is an arithmetic number, because the mean of its divisors is an integer number (1222312).

Almost surely, 213055418 is an apocalyptic number.

13055418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13055418 is an abundant number, since it is smaller than the sum of its proper divisors (16280070).

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

13055418 is an equidigital number, since it uses as much as digits as its factorization.

13055418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26880 (or 26868 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 13055418 is about 3613.2281965024. The cubic root of 13055418 is about 235.4671137493.

The spelling of 13055418 in words is "thirteen million, fifty-five thousand, four hundred eighteen".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 26863 53726 80589 161178 241767 483534 725301 1450602 2175903 4351806 6527709 13055418