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131427241 = 1111947931
BaseRepresentation
bin1111101010101…
…10101110101001
3100011022012021121
413311112232221
5232121132431
621012535241
73154053541
oct765265651
9304265247
10131427241
1168207260
1238021521
13212c82ca
1413652321
15b811611
hex7d56ba9

131427241 has 4 divisors (see below), whose sum is σ = 143375184. Its totient is φ = 119479300.

The previous prime is 131427223. The next prime is 131427269. The reversal of 131427241 is 142724131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131427241 - 25 = 131427209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131427211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5973955 + ... + 5973976.

It is an arithmetic number, because the mean of its divisors is an integer number (35843796).

Almost surely, 2131427241 is an apocalyptic number.

131427241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131427241 is a deficient number, since it is larger than the sum of its proper divisors (11947943).

131427241 is a wasteful number, since it uses less digits than its factorization.

131427241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11947942.

The product of its digits is 1344, while the sum is 25.

The square root of 131427241 is about 11464.1720590717. The cubic root of 131427241 is about 508.4268337430.

The spelling of 131427241 in words is "one hundred thirty-one million, four hundred twenty-seven thousand, two hundred forty-one".

Divisors: 1 11 11947931 131427241