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142353144 = 23322517877
BaseRepresentation
bin10000111110000…
…10001011111000
3100220212021210200
420133002023320
5242420300034
622043042200
73345660513
oct1037021370
9326767720
10142353144
117339a02a
123b810360
132365243b
1414c97d7a
15c76da99
hex87c22f8

142353144 has 48 divisors (see below), whose sum is σ = 387124920. Its totient is φ = 47256000.

The previous prime is 142353131. The next prime is 142353161. The reversal of 142353144 is 441353241.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 14134 + ... + 22010.

Almost surely, 2142353144 is an apocalyptic number.

It is an amenable number.

142353144 is an abundant number, since it is smaller than the sum of its proper divisors (244771776).

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

142353144 is a wasteful number, since it uses less digits than its factorization.

142353144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8140 (or 8133 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 142353144 is about 11931.1836797528. The cubic root of 142353144 is about 522.1424722307.

The spelling of 142353144 in words is "one hundred forty-two million, three hundred fifty-three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 251 502 753 1004 1506 2008 2259 3012 4518 6024 7877 9036 15754 18072 23631 31508 47262 63016 70893 94524 141786 189048 283572 567144 1977127 3954254 5931381 7908508 11862762 15817016 17794143 23725524 35588286 47451048 71176572 142353144