Search a number
-
+
131477482 = 2208931469
BaseRepresentation
bin1111101011000…
…10111111101010
3100011101202012101
413311202333222
5232124234412
621014004014
73154353163
oct765427752
9304352171
10131477482
1168240a84
123804660a
1321315136
141366676a
15b821457
hex7d62fea

131477482 has 8 divisors (see below), whose sum is σ = 197316900. Its totient is φ = 65705184.

The previous prime is 131477449. The next prime is 131477483. The reversal of 131477482 is 284774131.

It can be written as a sum of positive squares in 2 ways, for example, as 126090441 + 5387041 = 11229^2 + 2321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131477483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11557 + ... + 19912.

Almost surely, 2131477482 is an apocalyptic number.

131477482 is a deficient number, since it is larger than the sum of its proper divisors (65839418).

131477482 is a wasteful number, since it uses less digits than its factorization.

131477482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33560.

The product of its digits is 37632, while the sum is 37.

The square root of 131477482 is about 11466.3630676863. The cubic root of 131477482 is about 508.4916113293.

The spelling of 131477482 in words is "one hundred thirty-one million, four hundred seventy-seven thousand, four hundred eighty-two".

Divisors: 1 2 2089 4178 31469 62938 65738741 131477482