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142486830 = 2335527729
BaseRepresentation
bin10000111111000…
…10110100101110
3100221010002012000
420133202310232
5242434034310
622045553130
73350055333
oct1037426456
9327102160
10142486830
1173480512
123b8757a6
132369b245
1414cd098a
15c7984c0
hex87e2d2e

142486830 has 32 divisors (see below), whose sum is σ = 379965600. Its totient is φ = 37996416.

The previous prime is 142486811. The next prime is 142486853. The reversal of 142486830 is 38684241.

142486830 is a `hidden beast` number, since 142 + 486 + 8 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263595 + ... + 264134.

It is an arithmetic number, because the mean of its divisors is an integer number (11873925).

Almost surely, 2142486830 is an apocalyptic number.

142486830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142486830 is an abundant number, since it is smaller than the sum of its proper divisors (237478770).

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

142486830 is a wasteful number, since it uses less digits than its factorization.

142486830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527745 (or 527739 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 142486830 is about 11936.7847429699. The cubic root of 142486830 is about 522.3058717335.

The spelling of 142486830 in words is "one hundred forty-two million, four hundred eighty-six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 527729 1055458 1583187 2638645 3166374 4749561 5277290 7915935 9499122 14248683 15831870 23747805 28497366 47495610 71243415 142486830