Base | Representation |
---|---|
bin | 1111101001110… |
… | …10000111000111 |
3 | 100011002020111012 |
4 | 13310322013013 |
5 | 232103410043 |
6 | 21010232435 |
7 | 3153055025 |
oct | 764720707 |
9 | 304066435 |
10 | 131310023 |
11 | 68137189 |
12 | 37b8571b |
13 | 21286b50 |
14 | 13621715 |
15 | b7dba18 |
hex | 7d3a1c7 |
131310023 has 8 divisors (see below), whose sum is σ = 149729328. Its totient is φ = 114079104.
The previous prime is 131309993. The next prime is 131310043. The reversal of 131310023 is 320013131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131310023 - 210 = 131308999 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131310043) 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, 296861 + ... + 297302.
It is an arithmetic number, because the mean of its divisors is an integer number (18716166).
Almost surely, 2131310023 is an apocalyptic number.
131310023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
131310023 is a deficient number, since it is larger than the sum of its proper divisors (18419305).
131310023 is a wasteful number, since it uses less digits than its factorization.
131310023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 594193.
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 131310023 is about 11459.0585564435. The cubic root of 131310023 is about 508.2756360087.
Adding to 131310023 its reverse (320013131), we get a palindrome (451323154).
The spelling of 131310023 in words is "one hundred thirty-one million, three hundred ten thousand, twenty-three".
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