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1310113131 = 33711802821
BaseRepresentation
bin100111000010110…
…1011110101101011
310101022012122100120
41032011223311223
510140342110011
6334000134323
744315530545
oct11605536553
93338178316
101310113131
11612585428
123069073a3
1317b569192
14c5dd4695
157a03ba06
hex4e16bd6b

1310113131 has 8 divisors (see below), whose sum is σ = 1794028944. Its totient is φ = 849803040.

The previous prime is 1310113127. The next prime is 1310113141. The reversal of 1310113131 is 1313110131.

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

It is not a de Polignac number, because 1310113131 - 22 = 1310113127 is a prime.

It is a super-2 number, since 2×13101131312 = 3432792832037246322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1310113131.

It is not an unprimeable number, because it can be changed into a prime (1310113111) 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, 5901300 + ... + 5901521.

It is an arithmetic number, because the mean of its divisors is an integer number (224253618).

Almost surely, 21310113131 is an apocalyptic number.

1310113131 is a deficient number, since it is larger than the sum of its proper divisors (483915813).

1310113131 is a wasteful number, since it uses less digits than its factorization.

1310113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11802861.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1310113131 is about 36195.4849532369. The cubic root of 1310113131 is about 1094.2156782051.

Adding to 1310113131 its reverse (1313110131), we get a palindrome (2623223262).

The spelling of 1310113131 in words is "one billion, three hundred ten million, one hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 3 37 111 11802821 35408463 436704377 1310113131