Base | Representation |
---|---|
bin | 1111101000001… |
… | …00100000100101 |
3 | 100010200002022120 |
4 | 13310010200211 |
5 | 232024343334 |
6 | 21001420153 |
7 | 3151151646 |
oct | 764044045 |
9 | 303602276 |
10 | 131090469 |
11 | 67aa7234 |
12 | 37a9a659 |
13 | 2120ac33 |
14 | 135a56cd |
15 | b796949 |
hex | 7d04825 |
131090469 has 16 divisors (see below), whose sum is σ = 182582400. Its totient is φ = 83555136.
The previous prime is 131090461. The next prime is 131090513. The reversal of 131090469 is 964090131.
It is not a de Polignac number, because 131090469 - 23 = 131090461 is a prime.
It is a super-2 number, since 2×1310904692 = 34369422125279922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131090461) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1647 + ... + 16275.
It is an arithmetic number, because the mean of its divisors is an integer number (11411400).
Almost surely, 2131090469 is an apocalyptic number.
It is an amenable number.
131090469 is a deficient number, since it is larger than the sum of its proper divisors (51491931).
131090469 is a wasteful number, since it uses less digits than its factorization.
131090469 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14764.
The product of its (nonzero) digits is 5832, while the sum is 33.
The square root of 131090469 is about 11449.4746167674. The cubic root of 131090469 is about 507.9921943228.
The spelling of 131090469 in words is "one hundred thirty-one million, ninety thousand, four hundred sixty-nine".
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