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142680942 = 2327926719
BaseRepresentation
bin10001000000100…
…10001101101110
3100221110221110100
420200102031232
5243011242232
622054051530
73351524265
oct1040221556
9327427410
10142680942
11735a3338
123b949ba6
13237386c1
1414d415dc
15c7d5c7c
hex881236e

142680942 has 12 divisors (see below), whose sum is σ = 309142080. Its totient is φ = 47560308.

The previous prime is 142680911. The next prime is 142680953. The reversal of 142680942 is 249086241.

It is a junction number, because it is equal to n+sod(n) for n = 142680897 and 142680906.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 3963342 + ... + 3963377.

It is an arithmetic number, because the mean of its divisors is an integer number (25761840).

Almost surely, 2142680942 is an apocalyptic number.

142680942 is an abundant number, since it is smaller than the sum of its proper divisors (166461138).

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

142680942 is a wasteful number, since it uses less digits than its factorization.

142680942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7926727 (or 7926724 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 142680942 is about 11944.9128083883. The cubic root of 142680942 is about 522.5429458836.

The spelling of 142680942 in words is "one hundred forty-two million, six hundred eighty thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 7926719 15853438 23780157 47560314 71340471 142680942