Base | Representation |
---|---|
bin | 10111010001100010… |
… | …01011100000010110 |
3 | 1012020210210220221210 |
4 | 23220301023200112 |
5 | 201042224002021 |
6 | 5423514122250 |
7 | 621432642114 |
oct | 135061134026 |
9 | 35223726853 |
10 | 12495140886 |
11 | 53321aa318 |
12 | 2508720386 |
13 | 1241907cb7 |
14 | 8676aaab4 |
15 | 4d1e78e76 |
hex | 2e8c4b816 |
12495140886 has 32 divisors (see below), whose sum is σ = 26420486400. Its totient is φ = 3928595040.
The previous prime is 12495140881. The next prime is 12495140893. The reversal of 12495140886 is 68804159421.
It is a super-2 number, since 2×124951408862 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12495140881) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213210 + ... + 265421.
It is an arithmetic number, because the mean of its divisors is an integer number (825640200).
Almost surely, 212495140886 is an apocalyptic number.
12495140886 is an abundant number, since it is smaller than the sum of its proper divisors (13925345514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12495140886 is a wasteful number, since it uses less digits than its factorization.
12495140886 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 478884.
The product of its (nonzero) digits is 552960, while the sum is 48.
The spelling of 12495140886 in words is "twelve billion, four hundred ninety-five million, one hundred forty thousand, eight hundred eighty-six".
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