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131198975000 = 235531414129
BaseRepresentation
bin111101000110000010…
…0010111110000011000
3110112122111000111010022
41322030010113300120
54122143414200000
6140134425210012
712323142613202
oct1721404276030
9415574014108
10131198975000
1150706445865
1221516330908
13c4ab3ca5b2
1464c880d772
15362d24a585
hex1e8c117c18

131198975000 has 192 divisors, whose sum is σ = 325216684800. Its totient is φ = 49536000000.

The previous prime is 131198974961. The next prime is 131198975051. The reversal of 131198975000 is 579891131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31772936 + ... + 31777064.

It is an arithmetic number, because the mean of its divisors is an integer number (1693836900).

Almost surely, 2131198975000 is an apocalyptic number.

131198975000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131198975000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162608342400).

131198975000 is an abundant number, since it is smaller than the sum of its proper divisors (194017709800).

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

131198975000 is an equidigital number, since it uses as much as digits as its factorization.

131198975000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232 (or 4208 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 44.

The spelling of 131198975000 in words is "one hundred thirty-one billion, one hundred ninety-eight million, nine hundred seventy-five thousand".