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142355252 = 221313272063
BaseRepresentation
bin10000111110000…
…10101100110100
3100220212101200202
420133002230310
5242420332002
622043100032
73345666614
oct1037025464
9326771622
10142355252
11733a0676
123b811618
13236533a0
1414c98a44
15c76e502
hex87c2b34

142355252 has 24 divisors (see below), whose sum is σ = 268617216. Its totient is φ = 65621088.

The previous prime is 142355249. The next prime is 142355281. The reversal of 142355252 is 252553241.

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 7 ways as a sum of consecutive naturals, for example, 67973 + ... + 70035.

It is an arithmetic number, because the mean of its divisors is an integer number (11192384).

Almost surely, 2142355252 is an apocalyptic number.

It is an amenable number.

142355252 is a deficient number, since it is larger than the sum of its proper divisors (126261964).

142355252 is a wasteful number, since it uses less digits than its factorization.

142355252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407 (or 3405 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 142355252 is about 11931.2720193616. The cubic root of 142355252 is about 522.1450495556.

The spelling of 142355252 in words is "one hundred forty-two million, three hundred fifty-five thousand, two hundred fifty-two".

Divisors: 1 2 4 13 26 52 1327 2063 2654 4126 5308 8252 17251 26819 34502 53638 69004 107276 2737601 5475202 10950404 35588813 71177626 142355252