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142657674 = 23109218131
BaseRepresentation
bin10001000000011…
…00100010001010
3100221102202112120
420200030202022
5243010021144
622053352110
73351366405
oct1040144212
9327382476
10142657674
1173587905
123b938636
132372ac33
1414d36d3c
15c7cde19
hex880c88a

142657674 has 16 divisors (see below), whose sum is σ = 287934240. Its totient is φ = 47116080.

The previous prime is 142657667. The next prime is 142657717. The reversal of 142657674 is 476756241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108412 + ... + 109719.

It is an arithmetic number, because the mean of its divisors is an integer number (17995890).

Almost surely, 2142657674 is an apocalyptic number.

142657674 is an abundant number, since it is smaller than the sum of its proper divisors (145276566).

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

142657674 is a wasteful number, since it uses less digits than its factorization.

142657674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218245.

The product of its digits is 282240, while the sum is 42.

The square root of 142657674 is about 11943.9387975659. The cubic root of 142657674 is about 522.5145394030.

The spelling of 142657674 in words is "one hundred forty-two million, six hundred fifty-seven thousand, six hundred seventy-four".

Divisors: 1 2 3 6 109 218 327 654 218131 436262 654393 1308786 23776279 47552558 71328837 142657674