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142131382 = 2208934019
BaseRepresentation
bin10000111100011…
…00000010110110
3100220110000121021
420132030002312
5242341201012
622034211354
73344045131
oct1036140266
9326400537
10142131382
1173258458
123b723b5a
13235a5513
1414c3b218
15c728007
hex878c0b6

142131382 has 8 divisors (see below), whose sum is σ = 213305400. Its totient is φ = 71029584.

The previous prime is 142131347. The next prime is 142131397. The reversal of 142131382 is 283131241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12832 + ... + 21187.

It is an arithmetic number, because the mean of its divisors is an integer number (26663175).

Almost surely, 2142131382 is an apocalyptic number.

142131382 is a deficient number, since it is larger than the sum of its proper divisors (71174018).

142131382 is a wasteful number, since it uses less digits than its factorization.

142131382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36110.

The product of its digits is 1152, while the sum is 25.

The square root of 142131382 is about 11921.8866795487. The cubic root of 142131382 is about 521.8711949093.

The spelling of 142131382 in words is "one hundred forty-two million, one hundred thirty-one thousand, three hundred eighty-two".

Divisors: 1 2 2089 4178 34019 68038 71065691 142131382