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131419 = 1131163
BaseRepresentation
bin100000000101011011
320200021101
4200011123
513201134
62452231
71055101
oct400533
9220241
10131419
118a812
1264077
1347a82
1435c71
1528e14
hex2015b

131419 has 4 divisors (see below), whose sum is σ = 132696. Its totient is φ = 130144.

The previous prime is 131413. The next prime is 131431. The reversal of 131419 is 914131.

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 131419 - 217 = 347 is a prime.

It is a super-2 number, since 2×1314192 = 34541907122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131396 and 131405.

It is not an unprimeable number, because it can be changed into a prime (131413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469 + ... + 694.

It is an arithmetic number, because the mean of its divisors is an integer number (33174).

2131419 is an apocalyptic number.

131419 is a deficient number, since it is larger than the sum of its proper divisors (1277).

131419 is a wasteful number, since it uses less digits than its factorization.

131419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276.

The product of its digits is 108, while the sum is 19.

The square root of 131419 is about 362.5175857803. The cubic root of 131419 is about 50.8416206740.

The spelling of 131419 in words is "one hundred thirty-one thousand, four hundred nineteen".

Divisors: 1 113 1163 131419