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130131442 = 2737251219
BaseRepresentation
bin1111100000110…
…10010111110010
3100001212100210001
413300122113302
5231303201232
620525100214
73140045650
oct760322762
9301770701
10130131442
1167501751
12376b766a
1320c6356c
14133d5dd0
15b6576e7
hex7c1a5f2

130131442 has 16 divisors (see below), whose sum is σ = 229112640. Its totient is φ = 54263088.

The previous prime is 130131433. The next prime is 130131451. The reversal of 130131442 is 244131031.

It is an interprime number because it is at equal distance from previous prime (130131433) and next prime (130131451).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125092 + ... + 126127.

It is an arithmetic number, because the mean of its divisors is an integer number (14319540).

Almost surely, 2130131442 is an apocalyptic number.

130131442 is a deficient number, since it is larger than the sum of its proper divisors (98981198).

130131442 is a wasteful number, since it uses less digits than its factorization.

130131442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251265.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 130131442 is about 11407.5169077236. The cubic root of 130131442 is about 506.7503773467.

Adding to 130131442 its reverse (244131031), we get a palindrome (374262473).

The spelling of 130131442 in words is "one hundred thirty million, one hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 7 14 37 74 259 518 251219 502438 1758533 3517066 9295103 18590206 65065721 130131442