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31742056151 = 137333447899
BaseRepresentation
bin11101100011111110…
…010101011011010111
310000221011021112011022
4131203332111123113
51010001431244101
622325422231355
72202412011521
oct354376253327
9100834245138
1031742056151
1112509621663
12619a42555b
132cbb278060
14177195aa11
15c5ba38a1b
hex763f956d7

31742056151 has 8 divisors (see below), whose sum is σ = 34652024400. Its totient is φ = 28898983872.

The previous prime is 31742056147. The next prime is 31742056189. The reversal of 31742056151 is 15165024713.

It is a happy number.

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 31742056151 - 22 = 31742056147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31742056751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16723001 + ... + 16724898.

It is an arithmetic number, because the mean of its divisors is an integer number (4331503050).

Almost surely, 231742056151 is an apocalyptic number.

31742056151 is a deficient number, since it is larger than the sum of its proper divisors (2909968249).

31742056151 is a wasteful number, since it uses less digits than its factorization.

31742056151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33447985.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 31742056151 in words is "thirty-one billion, seven hundred forty-two million, fifty-six thousand, one hundred fifty-one".

Divisors: 1 13 73 949 33447899 434822687 2441696627 31742056151