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130310256 = 2437337189
BaseRepresentation
bin1111100010001…
…10000001110000
3100002012110001210
413301012001300
5231324412011
620533000120
73141422166
oct761060160
9302173053
10130310256
116761402a
1237783040
1320cc6a7b
1413441236
15b6906a6
hex7c46070

130310256 has 40 divisors (see below), whose sum is σ = 341255440. Its totient is φ = 42840576.

The previous prime is 130310239. The next prime is 130310261. The reversal of 130310256 is 652013031.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15091 + ... + 22098.

It is an arithmetic number, because the mean of its divisors is an integer number (8531386).

Almost surely, 2130310256 is an apocalyptic number.

130310256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

130310256 is an abundant number, since it is smaller than the sum of its proper divisors (210945184).

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

130310256 is a wasteful number, since it uses less digits than its factorization.

130310256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37273 (or 37267 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 130310256 is about 11415.3517685615. The cubic root of 130310256 is about 506.9823801789.

Adding to 130310256 its reverse (652013031), we get a palindrome (782323287).

The spelling of 130310256 in words is "one hundred thirty million, three hundred ten thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 73 146 219 292 438 584 876 1168 1752 3504 37189 74378 111567 148756 223134 297512 446268 595024 892536 1785072 2714797 5429594 8144391 10859188 16288782 21718376 32577564 43436752 65155128 130310256