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142261131061 = 7235364312791
BaseRepresentation
bin1000010001111101101…
…1001001011100110101
3111121012102102020110001
42010133123021130311
54312322322143221
6145204233431301
713164235443100
oct2043733113465
9447172366401
10142261131061
11553727773a5
12236a2b6b531
131055217837a
146c57a5d737
153a794b6391
hex211f6c9735

142261131061 has 24 divisors (see below), whose sum is σ = 166227332544. Its totient is φ = 121394085120.

The previous prime is 142261131013. The next prime is 142261131079. The reversal of 142261131061 is 160131162241.

It is not a de Polignac number, because 142261131061 - 215 = 142261098293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142261131011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11115576 + ... + 11128366.

It is an arithmetic number, because the mean of its divisors is an integer number (6926138856).

Almost surely, 2142261131061 is an apocalyptic number.

It is an amenable number.

142261131061 is a deficient number, since it is larger than the sum of its proper divisors (23966201483).

142261131061 is a wasteful number, since it uses less digits than its factorization.

142261131061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13801 (or 13794 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 142261131061 in words is "one hundred forty-two billion, two hundred sixty-one million, one hundred thirty-one thousand, sixty-one".

Divisors: 1 7 49 353 643 2471 4501 12791 17297 31507 89537 226979 626759 1588853 4515223 8224613 11121971 31606561 57572291 221245927 403006037 2903288389 20323018723 142261131061