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130171240 = 2353254281
BaseRepresentation
bin1111100001001…
…00000101101000
3100001221101101001
413300210011220
5231310434430
620530004344
73140302663
oct760440550
9301841331
10130171240
1167529641
12377166b4
1320c78704
14134066da
15b6643ca
hex7c24168

130171240 has 16 divisors (see below), whose sum is σ = 292885380. Its totient is φ = 52068480.

The previous prime is 130171229. The next prime is 130171241. The reversal of 130171240 is 42171031.

It can be written as a sum of positive squares in 2 ways, for example, as 105390756 + 24780484 = 10266^2 + 4978^2 .

It is not an unprimeable number, because it can be changed into a prime (130171241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1627101 + ... + 1627180.

Almost surely, 2130171240 is an apocalyptic number.

130171240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130171240 is an abundant number, since it is smaller than the sum of its proper divisors (162714140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130171240 is a wasteful number, since it uses less digits than its factorization.

130171240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254292 (or 3254288 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 130171240 is about 11409.2611504865. The cubic root of 130171240 is about 506.8020317755.

The spelling of 130171240 in words is "one hundred thirty million, one hundred seventy-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 3254281 6508562 13017124 16271405 26034248 32542810 65085620 130171240