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142855056 = 2433330683
BaseRepresentation
bin10001000001111…
…00101110010000
3100221210210022000
420200330232100
5243032330211
622101514000
73353151021
oct1040745620
9327723260
10142855056
1173702133
123ba12900
1323799a26
1414d88c48
15c81c656
hex883cb90

142855056 has 40 divisors (see below), whose sum is σ = 410048160. Its totient is φ = 47618208.

The previous prime is 142855007. The next prime is 142855079. The reversal of 142855056 is 650558241.

142855056 is a `hidden beast` number, since 142 + 8 + 5 + 505 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 142855056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164910 + ... + 165773.

It is an arithmetic number, because the mean of its divisors is an integer number (10251204).

Almost surely, 2142855056 is an apocalyptic number.

142855056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142855056 is an abundant number, since it is smaller than the sum of its proper divisors (267193104).

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

142855056 is a wasteful number, since it uses less digits than its factorization.

142855056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330700 (or 330688 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 142855056 is about 11952.1987935275. The cubic root of 142855056 is about 522.7554130796.

The spelling of 142855056 in words is "one hundred forty-two million, eight hundred fifty-five thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 330683 661366 992049 1322732 1984098 2645464 2976147 3968196 5290928 5952294 7936392 8928441 11904588 15872784 17856882 23809176 35713764 47618352 71427528 142855056