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142630344 = 23323136329
BaseRepresentation
bin10001000000001…
…01110111001000
3100221101101001100
420200011313020
5243003132334
622053021400
73351223623
oct1040056710
9327341040
10142630344
117356931a
123b924860
132371b66c
1414d2adba
15c7c5c99
hex8805dc8

142630344 has 48 divisors (see below), whose sum is σ = 387585900. Its totient is φ = 47384064.

The previous prime is 142630339. The next prime is 142630363. The reversal of 142630344 is 443036241.

It can be written as a sum of positive squares in 2 ways, for example, as 136188900 + 6441444 = 11670^2 + 2538^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19372 + ... + 25700.

Almost surely, 2142630344 is an apocalyptic number.

It is an amenable number.

142630344 is an abundant number, since it is smaller than the sum of its proper divisors (244955556).

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

142630344 is a wasteful number, since it uses less digits than its factorization.

142630344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6654 (or 6647 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 142630344 is about 11942.7946478201. The cubic root of 142630344 is about 522.4811699295.

Adding to 142630344 its reverse (443036241), we get a palindrome (585666585).

The spelling of 142630344 in words is "one hundred forty-two million, six hundred thirty thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 313 626 939 1252 1878 2504 2817 3756 5634 6329 7512 11268 12658 18987 22536 25316 37974 50632 56961 75948 113922 151896 227844 455688 1980977 3961954 5942931 7923908 11885862 15847816 17828793 23771724 35657586 47543448 71315172 142630344