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13055420 = 225793253
BaseRepresentation
bin110001110011…
…010110111100
3220120021200002
4301303112330
511320233140
61143453432
7215653310
oct61632674
926507602
1013055420
117407804
124457278
132921501
141a3bb40
15122d415
hexc735bc

13055420 has 24 divisors (see below), whose sum is σ = 31333344. Its totient is φ = 4476096.

The previous prime is 13055417. The next prime is 13055431. The reversal of 13055420 is 2455031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13055392 and 13055401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46487 + ... + 46766.

It is an arithmetic number, because the mean of its divisors is an integer number (1305556).

Almost surely, 213055420 is an apocalyptic number.

13055420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13055420 is an abundant number, since it is smaller than the sum of its proper divisors (18277924).

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

13055420 is a wasteful number, since it uses less digits than its factorization.

13055420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93269 (or 93267 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 13055420 is about 3613.2284732632. The cubic root of 13055420 is about 235.4671257733.

The spelling of 13055420 in words is "thirteen million, fifty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 93253 186506 373012 466265 652771 932530 1305542 1865060 2611084 3263855 6527710 13055420