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131469 = 3133371
BaseRepresentation
bin100000000110001101
320200100020
4200012031
513201334
62452353
71055202
oct400615
9220306
10131469
118a858
12640b9
1347ac0
1435ca9
1528e49
hex2018d

131469 has 8 divisors (see below), whose sum is σ = 188832. Its totient is φ = 80880.

The previous prime is 131449. The next prime is 131477. The reversal of 131469 is 964131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131469 - 25 = 131437 is a prime.

It is a super-2 number, since 2×1314692 = 34568195922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1647 + ... + 1724.

It is an arithmetic number, because the mean of its divisors is an integer number (23604).

2131469 is an apocalyptic number.

It is an amenable number.

131469 is a deficient number, since it is larger than the sum of its proper divisors (57363).

131469 is a wasteful number, since it uses less digits than its factorization.

131469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387.

The product of its digits is 648, while the sum is 24.

The square root of 131469 is about 362.5865413939. The cubic root of 131469 is about 50.8480676330.

The spelling of 131469 in words is "one hundred thirty-one thousand, four hundred sixty-nine".

Divisors: 1 3 13 39 3371 10113 43823 131469