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142576679 = 720368097
BaseRepresentation
bin10000111111110…
…00110000100111
3100221021122102202
420133320300213
5242444423204
622051525115
73350611310
oct1037706047
9327248382
10142576679
1173531a73
123b8b979b
13237000cb
1414d15607
15c7b4e1e
hex87f8c27

142576679 has 4 divisors (see below), whose sum is σ = 162944784. Its totient is φ = 122208576.

The previous prime is 142576667. The next prime is 142576699. The reversal of 142576679 is 976675241.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2k-142576679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142576619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10184042 + ... + 10184055.

It is an arithmetic number, because the mean of its divisors is an integer number (40736196).

Almost surely, 2142576679 is an apocalyptic number.

142576679 is a deficient number, since it is larger than the sum of its proper divisors (20368105).

142576679 is an equidigital number, since it uses as much as digits as its factorization.

142576679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20368104.

The product of its digits is 635040, while the sum is 47.

The square root of 142576679 is about 11940.5476842564. The cubic root of 142576679 is about 522.4156334560.

The spelling of 142576679 in words is "one hundred forty-two million, five hundred seventy-six thousand, six hundred seventy-nine".

Divisors: 1 7 20368097 142576679