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131225300 = 22525472399
BaseRepresentation
bin1111101001001…
…01011011010100
3100010220221021022
413310211123110
5232043202200
621004340312
73152253023
oct764453324
9303827238
10131225300
1168089568
1237b44698
132125740b
14135dc8ba
15b7c1885
hex7d256d4

131225300 has 36 divisors (see below), whose sum is σ = 285398400. Its totient is φ = 52372320.

The previous prime is 131225299. The next prime is 131225309. The reversal of 131225300 is 3522131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131225309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53501 + ... + 55899.

Almost surely, 2131225300 is an apocalyptic number.

131225300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131225300 is an abundant number, since it is smaller than the sum of its proper divisors (154173100).

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

131225300 is a wasteful number, since it uses less digits than its factorization.

131225300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960 (or 2953 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 131225300 is about 11455.3611902899. The cubic root of 131225300 is about 508.1662970550.

Adding to 131225300 its reverse (3522131), we get a palindrome (134747431).

The spelling of 131225300 in words is "one hundred thirty-one million, two hundred twenty-five thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 547 1094 2188 2399 2735 4798 5470 9596 10940 11995 13675 23990 27350 47980 54700 59975 119950 239900 1312253 2624506 5249012 6561265 13122530 26245060 32806325 65612650 131225300