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131424411 = 343808137
BaseRepresentation
bin1111101010101…
…10000010011011
3100011022001101210
413311112002123
5232121040121
621012514203
73154042356
oct765260233
9304261353
10131424411
1168205118
123801b963
13212c6c31
141365129d
15b810876
hex7d5609b

131424411 has 4 divisors (see below), whose sum is σ = 175232552. Its totient is φ = 87616272.

The previous prime is 131424409. The next prime is 131424421. The reversal of 131424411 is 114424131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 131424411 - 21 = 131424409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131424401) 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, 21904066 + ... + 21904071.

It is an arithmetic number, because the mean of its divisors is an integer number (43808138).

Almost surely, 2131424411 is an apocalyptic number.

131424411 is a deficient number, since it is larger than the sum of its proper divisors (43808141).

131424411 is an equidigital number, since it uses as much as digits as its factorization.

131424411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43808140.

The product of its digits is 384, while the sum is 21.

The square root of 131424411 is about 11464.0486303923. The cubic root of 131424411 is about 508.4231844279.

Adding to 131424411 its reverse (114424131), we get a palindrome (245848542).

The spelling of 131424411 in words is "one hundred thirty-one million, four hundred twenty-four thousand, four hundred eleven".

Divisors: 1 3 43808137 131424411