Base | Representation |
---|---|
bin | 10110100010110001… |
… | …10111101011100101 |
3 | 1011020110201121222221 |
4 | 23101120313223211 |
5 | 144241320023021 |
6 | 5320542552341 |
7 | 605630613115 |
oct | 132130675345 |
9 | 34213647887 |
10 | 12102892261 |
11 | 51508490a9 |
12 | 24192986b1 |
13 | 11ab57b915 |
14 | 82b563045 |
15 | 4ac7e7241 |
hex | 2d1637ae5 |
12102892261 has 8 divisors (see below), whose sum is σ = 12817600704. Its totient is φ = 11403891840.
The previous prime is 12102892247. The next prime is 12102892267. The reversal of 12102892261 is 16229820121.
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 12102892261 - 27 = 12102892133 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 (12102892267) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3925420 + ... + 3928501.
It is an arithmetic number, because the mean of its divisors is an integer number (1602200088).
Almost surely, 212102892261 is an apocalyptic number.
It is an amenable number.
12102892261 is a deficient number, since it is larger than the sum of its proper divisors (714708443).
12102892261 is an equidigital number, since it uses as much as digits as its factorization.
12102892261 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7854011.
The product of its (nonzero) digits is 6912, while the sum is 34.
The spelling of 12102892261 in words is "twelve billion, one hundred two million, eight hundred ninety-two thousand, two hundred sixty-one".
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