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130310023 = 1316191607
BaseRepresentation
bin1111100010001…
…01111110000111
3100002012102202011
413301011332013
5231324410043
620532555051
73141421414
oct761057607
9302172664
10130310023
1167613938
1237782a87
1320cc692c
141344110b
15b69059d
hex7c45f87

130310023 has 8 divisors (see below), whose sum is σ = 131598720. Its totient is φ = 129026040.

The previous prime is 130310017. The next prime is 130310027. The reversal of 130310023 is 320013031.

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 130310023 - 29 = 130309511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130309985 and 130310012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130310027) 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, 80286 + ... + 81892.

It is an arithmetic number, because the mean of its divisors is an integer number (16449840).

Almost surely, 2130310023 is an apocalyptic number.

130310023 is a deficient number, since it is larger than the sum of its proper divisors (1288697).

130310023 is a wasteful number, since it uses less digits than its factorization.

130310023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 130310023 is about 11415.3415630020. The cubic root of 130310023 is about 506.9820780104.

Adding to 130310023 its reverse (320013031), we get a palindrome (450323054).

The spelling of 130310023 in words is "one hundred thirty million, three hundred ten thousand, twenty-three".

Divisors: 1 131 619 1607 81089 210517 994733 130310023