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131240411 = 1060712373
BaseRepresentation
bin1111101001010…
…01000111011011
3100010221200222222
413310221013123
5232044143121
621004534255
73152345051
oct764510733
9303850888
10131240411
1168099955
1237b5138b
1321261263
14136041d1
15b7c60ab
hex7d291db

131240411 has 4 divisors (see below), whose sum is σ = 131263392. Its totient is φ = 131217432.

The previous prime is 131240407. The next prime is 131240413. The reversal of 131240411 is 114042131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 131240411 - 22 = 131240407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131240411.

It is not an unprimeable number, because it can be changed into a prime (131240413) 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, 4421 + ... + 16793.

It is an arithmetic number, because the mean of its divisors is an integer number (32815848).

Almost surely, 2131240411 is an apocalyptic number.

131240411 is a deficient number, since it is larger than the sum of its proper divisors (22981).

131240411 is a wasteful number, since it uses less digits than its factorization.

131240411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22980.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 131240411 is about 11456.0207314757. The cubic root of 131240411 is about 508.1858019477.

Adding to 131240411 its reverse (114042131), we get a palindrome (245282542).

The spelling of 131240411 in words is "one hundred thirty-one million, two hundred forty thousand, four hundred eleven".

Divisors: 1 10607 12373 131240411