Base | Representation |
---|---|
bin | 1111101101110… |
… | …00100100101111 |
3 | 100012001120001002 |
4 | 13312320210233 |
5 | 232221444030 |
6 | 21025310515 |
7 | 3160343144 |
oct | 766704457 |
9 | 305046032 |
10 | 131828015 |
11 | 68460380 |
12 | 3819543b |
13 | 21408857 |
14 | 137183cb |
15 | b890245 |
hex | 7db892f |
131828015 has 16 divisors (see below), whose sum is σ = 175408416. Its totient is φ = 94300800.
The previous prime is 131827991. The next prime is 131828041. The reversal of 131828015 is 510828131.
It is not a de Polignac number, because 131828015 - 218 = 131565871 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 16292 + ... + 23001.
It is an arithmetic number, because the mean of its divisors is an integer number (10963026).
Almost surely, 2131828015 is an apocalyptic number.
131828015 is a deficient number, since it is larger than the sum of its proper divisors (43580401).
131828015 is a wasteful number, since it uses less digits than its factorization.
131828015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 39370.
The product of its (nonzero) digits is 1920, while the sum is 29.
The square root of 131828015 is about 11481.6381670910. The cubic root of 131828015 is about 508.9431079569.
The spelling of 131828015 in words is "one hundred thirty-one million, eight hundred twenty-eight thousand, fifteen".
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