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55970142 = 2389281373
BaseRepresentation
bin1101010110000…
…0100101011110
310220022120121020
43111200211132
5103312021032
65315345010
71246511154
oct325404536
9126276536
1055970142
1129659218
12168b2166
13b798937
14760d3d4
154da8b2c
hex356095e

55970142 has 32 divisors (see below), whose sum is σ = 113905440. Its totient is φ = 18332160.

The previous prime is 55970129. The next prime is 55970179. The reversal of 55970142 is 24107955.

55970142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149868 + ... + 150240.

It is an arithmetic number, because the mean of its divisors is an integer number (3559545).

Almost surely, 255970142 is an apocalyptic number.

55970142 is an abundant number, since it is smaller than the sum of its proper divisors (57935298).

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

55970142 is a wasteful number, since it uses less digits than its factorization.

55970142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 55970142 is about 7481.3195360177. The cubic root of 55970142 is about 382.5182288719.

The spelling of 55970142 in words is "fifty-five million, nine hundred seventy thousand, one hundred forty-two".

Divisors: 1 2 3 6 89 178 267 281 373 534 562 746 843 1119 1686 2238 25009 33197 50018 66394 75027 99591 104813 150054 199182 209626 314439 628878 9328357 18656714 27985071 55970142