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131325400 = 23522328549
BaseRepresentation
bin1111101001111…
…01110111011000
3100011010000120201
413310331313120
5232104403100
621010431544
73153150613
oct764756730
9304100521
10131325400
1168147798
1237b925b4
1321290b4b
141362717a
15b7e136a
hex7d3ddd8

131325400 has 48 divisors (see below), whose sum is σ = 318618000. Its totient is φ = 50244480.

The previous prime is 131325367. The next prime is 131325421. The reversal of 131325400 is 4523131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9675 + ... + 18874.

It is an arithmetic number, because the mean of its divisors is an integer number (6637875).

Almost surely, 2131325400 is an apocalyptic number.

131325400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131325400 is an abundant number, since it is smaller than the sum of its proper divisors (187292600).

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

131325400 is a wasteful number, since it uses less digits than its factorization.

131325400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28588 (or 28579 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 131325400 is about 11459.7294906992. The cubic root of 131325400 is about 508.2954756960.

Adding to 131325400 its reverse (4523131), we get a palindrome (135848531).

The spelling of 131325400 in words is "one hundred thirty-one million, three hundred twenty-five thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 23 25 40 46 50 92 100 115 184 200 230 460 575 920 1150 2300 4600 28549 57098 114196 142745 228392 285490 570980 656627 713725 1141960 1313254 1427450 2626508 2854900 3283135 5253016 5709800 6566270 13132540 16415675 26265080 32831350 65662700 131325400