Base | Representation |
---|---|
bin | 10110110001000011… |
… | …11101010100110101 |
3 | 1011112211012021011011 |
4 | 23120201331110311 |
5 | 200013003341224 |
6 | 5340503112221 |
7 | 611614236106 |
oct | 133041752465 |
9 | 34484167134 |
10 | 12222715189 |
11 | 5202449913 |
12 | 2451442671 |
13 | 11ca343069 |
14 | 83d4343ad |
15 | 4b80b5394 |
hex | 2d887d535 |
12222715189 has 4 divisors (see below), whose sum is σ = 12223640800. Its totient is φ = 12221789580.
The previous prime is 12222715159. The next prime is 12222715201. The reversal of 12222715189 is 98151722221.
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.
It is a cyclic number.
It is not a de Polignac number, because 12222715189 - 229 = 11685844277 is a prime.
It is a super-2 number, since 2×122227151892 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12222715129) 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, 442707 + ... + 469504.
It is an arithmetic number, because the mean of its divisors is an integer number (3055910200).
Almost surely, 212222715189 is an apocalyptic number.
It is an amenable number.
12222715189 is a deficient number, since it is larger than the sum of its proper divisors (925611).
12222715189 is an equidigital number, since it uses as much as digits as its factorization.
12222715189 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 925610.
The product of its digits is 40320, while the sum is 40.
The spelling of 12222715189 in words is "twelve billion, two hundred twenty-two million, seven hundred fifteen thousand, one hundred eighty-nine".
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