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134131031 = 3713127673
BaseRepresentation
bin1111111111010…
…10110101010111
3100100101120011222
413333222311113
5233314143111
621150520555
73216044366
oct777526527
9310346158
10134131031
11697936a1
1238b0615b
1321a33b98
1413b577dd
15bb977db
hex7fead57

134131031 has 8 divisors (see below), whose sum is σ = 138812784. Its totient is φ = 129504960.

The previous prime is 134131007. The next prime is 134131033. The reversal of 134131031 is 130131431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-134131031 is a prime.

It is a super-2 number, since 2×1341310312 = 35982266954245922, which 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 (134131033) 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, 8990 + ... + 18683.

It is an arithmetic number, because the mean of its divisors is an integer number (17351598).

Almost surely, 2134131031 is an apocalyptic number.

134131031 is a deficient number, since it is larger than the sum of its proper divisors (4681753).

134131031 is a wasteful number, since it uses less digits than its factorization.

134131031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27841.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 134131031 is about 11581.4951970806. The cubic root of 134131031 is about 511.8897353187.

Adding to 134131031 its reverse (130131431), we get a palindrome (264262462).

The spelling of 134131031 in words is "one hundred thirty-four million, one hundred thirty-one thousand, thirty-one".

Divisors: 1 37 131 4847 27673 1023901 3625163 134131031