Base | Representation |
---|---|
bin | 10111000001101101… |
… | …01100011101110001 |
3 | 1011220112222102000010 |
4 | 23200312230131301 |
5 | 200304231301011 |
6 | 5402412245133 |
7 | 615231254532 |
oct | 134066543561 |
9 | 34815872003 |
10 | 12362368881 |
11 | 5274264795 |
12 | 24901707a9 |
13 | 122025b895 |
14 | 853bc8689 |
15 | 4c549e1a6 |
hex | 2e0dac771 |
12362368881 has 4 divisors (see below), whose sum is σ = 16483158512. Its totient is φ = 8241579252.
The previous prime is 12362368861. The next prime is 12362368903. The reversal of 12362368881 is 18886326321.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18886326321 = 3 ⋅6295442107.
It is not a de Polignac number, because 12362368881 - 26 = 12362368817 is a prime.
It is a super-2 number, since 2×123623688812 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12362368881.
It is not an unprimeable number, because it can be changed into a prime (12362368801) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2060394811 + ... + 2060394816.
It is an arithmetic number, because the mean of its divisors is an integer number (4120789628).
Almost surely, 212362368881 is an apocalyptic number.
It is an amenable number.
12362368881 is a deficient number, since it is larger than the sum of its proper divisors (4120789631).
12362368881 is an equidigital number, since it uses as much as digits as its factorization.
12362368881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4120789630.
The product of its digits is 663552, while the sum is 48.
The spelling of 12362368881 in words is "twelve billion, three hundred sixty-two million, three hundred sixty-eight thousand, eight hundred eighty-one".
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