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142355154 = 23107221737
BaseRepresentation
bin10000111110000…
…10101011010010
3100220212101120010
420133002223102
5242420331104
622043055350
73345666414
oct1037025322
9326771503
10142355154
11733a0597
123b811556
1323653326
1414c989b4
15c76e489
hex87c2ad2

142355154 has 16 divisors (see below), whose sum is σ = 287372448. Its totient is φ = 47008032.

The previous prime is 142355137. The next prime is 142355177. The reversal of 142355154 is 451553241.

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 7 ways as a sum of consecutive naturals, for example, 110227 + ... + 111510.

It is an arithmetic number, because the mean of its divisors is an integer number (17960778).

Almost surely, 2142355154 is an apocalyptic number.

142355154 is an abundant number, since it is smaller than the sum of its proper divisors (145017294).

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

142355154 is a wasteful number, since it uses less digits than its factorization.

142355154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221849.

The product of its digits is 12000, while the sum is 30.

The square root of 142355154 is about 11931.2679125062. The cubic root of 142355154 is about 522.1449297374.

The spelling of 142355154 in words is "one hundred forty-two million, three hundred fifty-five thousand, one hundred fifty-four".

Divisors: 1 2 3 6 107 214 321 642 221737 443474 665211 1330422 23725859 47451718 71177577 142355154