Search a number
-
+
131496750 = 23353711223
BaseRepresentation
bin1111101011001…
…11101100101110
3100011102201122000
413311213230232
5232130344000
621014233130
73154463310
oct765475456
9304381560
10131496750
1168254500
12380557a6
1321320b38
141366d7b0
15b827000
hex7d67b2e

131496750 has 384 divisors, whose sum is σ = 478033920. Its totient is φ = 26136000.

The previous prime is 131496749. The next prime is 131496767. The reversal of 131496750 is 57694131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5717239 + ... + 5717261.

It is an arithmetic number, because the mean of its divisors is an integer number (1244880).

Almost surely, 2131496750 is an apocalyptic number.

131496750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131496750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239016960).

131496750 is an abundant number, since it is smaller than the sum of its proper divisors (346537170).

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

131496750 is a wasteful number, since it uses less digits than its factorization.

131496750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 131496750 is about 11467.2032335701. The cubic root of 131496750 is about 508.5164498990.

The spelling of 131496750 in words is "one hundred thirty-one million, four hundred ninety-six thousand, seven hundred fifty".