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13055142 = 232175857
BaseRepresentation
bin110001110011…
…010010100110
3220120021021210
4301303102212
511320231032
61143452250
7215652432
oct61632246
926507253
1013055142
117407581
124457086
132921349
141a3b9c2
15122d2cc
hexc734a6

13055142 has 8 divisors (see below), whose sum is σ = 26110296. Its totient is φ = 4351712.

The previous prime is 13055137. The next prime is 13055149. The reversal of 13055142 is 24155031.

13055142 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

13055142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13055149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087923 + ... + 1087934.

It is an arithmetic number, because the mean of its divisors is an integer number (3263787).

Almost surely, 213055142 is an apocalyptic number.

13055142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13055142 is a wasteful number, since it uses less digits than its factorization.

13055142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175862.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13055142 is about 3613.1900033073. The cubic root of 13055142 is about 235.4654544285.

The spelling of 13055142 in words is "thirteen million, fifty-five thousand, one hundred forty-two".

Divisors: 1 2 3 6 2175857 4351714 6527571 13055142