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142234332431 = 8111051166871
BaseRepresentation
bin1000010001110111010…
…0111010110100001111
3111121010112222201122012
42010131310322310033
54312243442114211
6145201435211435
713163461610012
oct2043564726417
9447115881565
10142234332431
1155359633174
1223695ba6b7b
13105497545a9
146c54285379
153a76e70d8b
hex211dd3ad0f

142234332431 has 8 divisors (see below), whose sum is σ = 142546067328. Its totient is φ = 141922935000.

The previous prime is 142234332413. The next prime is 142234332451. The reversal of 142234332431 is 134233432241.

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

It is a cyclic number.

It is not a de Polignac number, because 142234332431 - 230 = 141160590607 is a prime.

It is a super-2 number, since 2×1422343324312 (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 (142234332451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768926 + ... + 935796.

It is an arithmetic number, because the mean of its divisors is an integer number (17818258416).

Almost surely, 2142234332431 is an apocalyptic number.

142234332431 is a deficient number, since it is larger than the sum of its proper divisors (311734897).

142234332431 is a wasteful number, since it uses less digits than its factorization.

142234332431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168733.

The product of its digits is 41472, while the sum is 32.

Adding to 142234332431 its reverse (134233432241), we get a palindrome (276467764672).

The spelling of 142234332431 in words is "one hundred forty-two billion, two hundred thirty-four million, three hundred thirty-two thousand, four hundred thirty-one".

Divisors: 1 811 1051 166871 852361 135332381 175381421 142234332431