Search a number
-
+
130131002 = 2313207877
BaseRepresentation
bin1111100000110…
…10010000111010
3100001212100011202
413300122100322
5231303143002
620525054202
73140044451
oct760322072
9301770152
10130131002
1167501391
12376b7362
1320c632c1
14133d5b98
15b657502
hex7c1a43a

130131002 has 8 divisors (see below), whose sum is σ = 195821076. Its totient is φ = 64857312.

The previous prime is 130130947. The next prime is 130131011. The reversal of 130131002 is 200131031.

It can be written as a sum of positive squares in 2 ways, for example, as 111112681 + 19018321 = 10541^2 + 4361^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103313 + ... + 104564.

Almost surely, 2130131002 is an apocalyptic number.

130131002 is a deficient number, since it is larger than the sum of its proper divisors (65690074).

130131002 is a wasteful number, since it uses less digits than its factorization.

130131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208192.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 130131002 is about 11407.4976221781. The cubic root of 130131002 is about 506.7498062052.

Adding to 130131002 its reverse (200131031), we get a palindrome (330262033).

The spelling of 130131002 in words is "one hundred thirty million, one hundred thirty-one thousand, two".

Divisors: 1 2 313 626 207877 415754 65065501 130131002