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104131 = 1011031
BaseRepresentation
bin11001011011000011
312021211201
4121123003
511313011
62122031
7612406
oct313303
9167751
10104131
1171265
1250317
1338521
1429d3d
1520cc1
hex196c3

104131 has 4 divisors (see below), whose sum is σ = 105264. Its totient is φ = 103000.

The previous prime is 104123. The next prime is 104147. The reversal of 104131 is 131401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131401 = 1011301.

It is a cyclic number.

It is not a de Polignac number, because 104131 - 23 = 104123 is a prime.

It is a super-2 number, since 2×1041312 = 21686530322, which contains 22 as substring.

It is a Duffinian number.

104131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (104161) 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, 415 + ... + 616.

It is an arithmetic number, because the mean of its divisors is an integer number (26316).

2104131 is an apocalyptic number.

104131 is a deficient number, since it is larger than the sum of its proper divisors (1133).

104131 is a wasteful number, since it uses less digits than its factorization.

104131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 104131 is about 322.6933528909. The cubic root of 104131 is about 47.0464306521.

Adding to 104131 its reverse (131401), we get a palindrome (235532).

The spelling of 104131 in words is "one hundred four thousand, one hundred thirty-one".

Divisors: 1 101 1031 104131