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142860684 = 22311905057
BaseRepresentation
bin10001000001111…
…10000110001100
3100221211002000110
420200332012030
5243033020214
622102000020
73353203311
oct1040760614
9327732013
10142860684
117370638a
123ba16010
132379c465
1414d8ad08
15c81e159
hex883e18c

142860684 has 12 divisors (see below), whose sum is σ = 333341624. Its totient is φ = 47620224.

The previous prime is 142860643. The next prime is 142860701. The reversal of 142860684 is 486068241.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5952517 + ... + 5952540.

Almost surely, 2142860684 is an apocalyptic number.

It is an amenable number.

142860684 is an abundant number, since it is smaller than the sum of its proper divisors (190480940).

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

142860684 is a wasteful number, since it uses less digits than its factorization.

142860684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11905064 (or 11905062 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 142860684 is about 11952.4342290598. The cubic root of 142860684 is about 522.7622779138.

The spelling of 142860684 in words is "one hundred forty-two million, eight hundred sixty thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 12 11905057 23810114 35715171 47620228 71430342 142860684