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131100430 = 2517771179
BaseRepresentation
bin1111101000001…
…10111100001110
3100010200120222111
413310012330032
5232030203210
621001534234
73151222666
oct764067416
9303616874
10131100430
116800376a
1237aa437a
1321212626
14135a91a6
15b79988a
hex7d06f0e

131100430 has 16 divisors (see below), whose sum is σ = 249862320. Its totient is φ = 49355392.

The previous prime is 131100427. The next prime is 131100433. The reversal of 131100430 is 34001131.

It is an interprime number because it is at equal distance from previous prime (131100427) and next prime (131100433).

It is a self number, because there is not a number n which added to its sum of digits gives 131100430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131100433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385420 + ... + 385759.

It is an arithmetic number, because the mean of its divisors is an integer number (15616395).

Almost surely, 2131100430 is an apocalyptic number.

131100430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131100430 is a deficient number, since it is larger than the sum of its proper divisors (118761890).

131100430 is a wasteful number, since it uses less digits than its factorization.

131100430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771203.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131100430 is about 11449.9096066301. The cubic root of 131100430 is about 508.0050607097.

Adding to 131100430 its reverse (34001131), we get a palindrome (165101561).

The spelling of 131100430 in words is "one hundred thirty-one million, one hundred thousand, four hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 771179 1542358 3855895 7711790 13110043 26220086 65550215 131100430