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131131304300 = 22521311313043
BaseRepresentation
bin111101000100000001…
…0001110100101101100
3110112110202200110101002
41322020002032211230
54122024103214200
6140124010535432
712321361460423
oct1721002164554
9415422613332
10131131304300
1150681225867
12214b7737578
13c49a396069
1464bd8362ba
15362732ebd5
hex1e8808e96c

131131304300 has 18 divisors (see below), whose sum is σ = 284554930548. Its totient is φ = 52452521680.

The previous prime is 131131304281. The next prime is 131131304321. The reversal of 131131304300 is 3403131131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 655656422 + ... + 655656621.

Almost surely, 2131131304300 is an apocalyptic number.

131131304300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131131304300 is an abundant number, since it is smaller than the sum of its proper divisors (153423626248).

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

131131304300 is a wasteful number, since it uses less digits than its factorization.

131131304300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311313057 (or 1311313050 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131131304300 its reverse (3403131131), we get a palindrome (134534435431).

The spelling of 131131304300 in words is "one hundred thirty-one billion, one hundred thirty-one million, three hundred four thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1311313043 2622626086 5245252172 6556565215 13113130430 26226260860 32782826075 65565652150 131131304300