Base | Representation |
---|---|
bin | 101110010001… |
… | …110100011010 |
3 | 211211100102220 |
4 | 232101310122 |
5 | 11101202420 |
6 | 1112004510 |
7 | 205055061 |
oct | 56216432 |
9 | 24740386 |
10 | 12131610 |
11 | 6936727 |
12 | 4090736 |
13 | 2689b8a |
14 | 187b1d8 |
15 | 10e9840 |
hex | b91d1a |
12131610 has 16 divisors (see below), whose sum is σ = 29115936. Its totient is φ = 3235088.
The previous prime is 12131573. The next prime is 12131621. The reversal of 12131610 is 1613121.
12131610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×121316102 = 294351922384200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 12131610.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202164 + ... + 202223.
It is an arithmetic number, because the mean of its divisors is an integer number (1819746).
Almost surely, 212131610 is an apocalyptic number.
12131610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12131610 is an abundant number, since it is smaller than the sum of its proper divisors (16984326).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12131610 is a wasteful number, since it uses less digits than its factorization.
12131610 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 404397.
The product of its (nonzero) digits is 36, while the sum is 15.
The square root of 12131610 is about 3483.0460806599. The cubic root of 12131610 is about 229.7767840682.
Adding to 12131610 its reverse (1613121), we get a palindrome (13744731).
The spelling of 12131610 in words is "twelve million, one hundred thirty-one thousand, six hundred ten".
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