Search a number
-
+
131371800 = 233527311009
BaseRepresentation
bin1111101010010…
…01001100011000
3100011012101020020
413311021030120
5232112344200
621011430440
73153433110
oct765111430
9304171206
10131371800
116817963a
1237bb5420
13212a8cc1
141363a040
15b7eeea0
hex7d49318

131371800 has 192 divisors, whose sum is σ = 480921600. Its totient is φ = 29030400.

The previous prime is 131371781. The next prime is 131371813. The reversal of 131371800 is 8173131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129696 + ... + 130704.

It is an arithmetic number, because the mean of its divisors is an integer number (2504800).

Almost surely, 2131371800 is an apocalyptic number.

131371800 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 131371800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240460800).

131371800 is an abundant number, since it is smaller than the sum of its proper divisors (349549800).

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

131371800 is a wasteful number, since it uses less digits than its factorization.

131371800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 131371800 is about 11461.7537925049. The cubic root of 131371800 is about 508.3553324410.

The spelling of 131371800 in words is "one hundred thirty-one million, three hundred seventy-one thousand, eight hundred".