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130313131 = 1310024087
BaseRepresentation
bin1111100010001…
…10101110101011
3100002012121000021
413301012232223
5231330010011
620533021311
73141433444
oct761065653
9302177007
10130313131
1167616203
1237784837
1320cc8180
14134422cb
15b691471
hex7c46bab

130313131 has 4 divisors (see below), whose sum is σ = 140337232. Its totient is φ = 120289032.

The previous prime is 130313111. The next prime is 130313159. The reversal of 130313131 is 131313031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130313131 - 27 = 130313003 is a prime.

It is a super-2 number, since 2×1303131312 = 33963024222046322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130313111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012031 + ... + 5012056.

It is an arithmetic number, because the mean of its divisors is an integer number (35084308).

Almost surely, 2130313131 is an apocalyptic number.

130313131 is a deficient number, since it is larger than the sum of its proper divisors (10024101).

130313131 is a wasteful number, since it uses less digits than its factorization.

130313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10024100.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 130313131 is about 11415.4776947791. The cubic root of 130313131 is about 506.9861086233.

Adding to 130313131 its reverse (131313031), we get a palindrome (261626162).

The spelling of 130313131 in words is "one hundred thirty million, three hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 13 10024087 130313131