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131420411 = 373551903
BaseRepresentation
bin1111101010101…
…01000011111011
3100011021211220122
413311111003323
5232120423121
621012443455
73154024613
oct765250373
9304254818
10131420411
1168202111
123801958b
13212c5175
141364da43
15b80e5ab
hex7d550fb

131420411 has 4 divisors (see below), whose sum is σ = 134972352. Its totient is φ = 127868472.

The previous prime is 131420407. The next prime is 131420417. The reversal of 131420411 is 114024131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131420411 - 22 = 131420407 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 131420411.

It is not an unprimeable number, because it can be changed into a prime (131420417) 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, 1775915 + ... + 1775988.

It is an arithmetic number, because the mean of its divisors is an integer number (33743088).

Almost surely, 2131420411 is an apocalyptic number.

131420411 is a deficient number, since it is larger than the sum of its proper divisors (3551941).

131420411 is an equidigital number, since it uses as much as digits as its factorization.

131420411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551940.

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

The square root of 131420411 is about 11463.8741706284. The cubic root of 131420411 is about 508.4180262959.

Adding to 131420411 its reverse (114024131), we get a palindrome (245444542).

The spelling of 131420411 in words is "one hundred thirty-one million, four hundred twenty thousand, four hundred eleven".

Divisors: 1 37 3551903 131420411