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142142606631 = 3276692059411
BaseRepresentation
bin1000010001100001011…
…1000000110100100111
3111120220011101120111100
42010120113000310213
54312102001403011
6145144401211143
713161266135604
oct2043027006447
9446804346440
10142142606631
1155311883223
122366b330ab3
1310533749c7c
146c460096ab
153a6dda2d56
hex21185c0d27

142142606631 has 12 divisors (see below), whose sum is σ = 205343970520. Its totient is φ = 94749335280.

The previous prime is 142142606629. The next prime is 142142606699. The reversal of 142142606631 is 136606241241.

142142606631 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 42 + 606 + 6 + 3 + 1 = 666.

It is not a de Polignac number, because 142142606631 - 21 = 142142606629 is a prime.

It is a super-2 number, since 2×1421426066312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142142604631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 960685 + ... + 1098726.

Almost surely, 2142142606631 is an apocalyptic number.

142142606631 is a deficient number, since it is larger than the sum of its proper divisors (63201363889).

142142606631 is a wasteful number, since it uses less digits than its factorization.

142142606631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067086 (or 2067083 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 142142606631 its reverse (136606241241), we get a palindrome (278748847872).

The spelling of 142142606631 in words is "one hundred forty-two billion, one hundred forty-two million, six hundred six thousand, six hundred thirty-one".

Divisors: 1 3 9 7669 23007 69021 2059411 6178233 18534699 15793622959 47380868877 142142606631