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142081854 = 2323680309
BaseRepresentation
bin10000111011111…
…11111100111110
3100220100111122220
420131333330332
5242333104404
622033150210
73343450545
oct1035777476
9326314586
10142081854
1173224222
123b6bb366
1323588b05
1414c2715c
15c7184d9
hex877ff3e

142081854 has 8 divisors (see below), whose sum is σ = 284163720. Its totient is φ = 47360616.

The previous prime is 142081843. The next prime is 142081873. The reversal of 142081854 is 458180241.

142081854 is digitally balanced in base 3, because in such base 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.

142081854 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11840149 + ... + 11840160.

It is an arithmetic number, because the mean of its divisors is an integer number (35520465).

Almost surely, 2142081854 is an apocalyptic number.

142081854 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.

142081854 is a wasteful number, since it uses less digits than its factorization.

142081854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23680314.

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 142081854 is about 11919.8093105553. The cubic root of 142081854 is about 521.8105696881.

The spelling of 142081854 in words is "one hundred forty-two million, eighty-one thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 23680309 47360618 71040927 142081854