Base | Representation |
---|---|
bin | 10110110100110100… |
… | …01010001101001111 |
3 | 1011122000111010210202 |
4 | 23122122022031033 |
5 | 200044040201411 |
6 | 5343550324115 |
7 | 612446124113 |
oct | 133232121517 |
9 | 34560433722 |
10 | 12254225231 |
11 | 5219210876 |
12 | 245bab963b |
13 | 1203a26461 |
14 | 8436b7743 |
15 | 4bac3b83b |
hex | 2da68a34f |
12254225231 has 4 divisors (see below), whose sum is σ = 12254779632. Its totient is φ = 12253670832.
The previous prime is 12254225219. The next prime is 12254225257. The reversal of 12254225231 is 13252245221.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 12254225231 - 210 = 12254224207 is a prime.
It is a super-2 number, since 2×122542252312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12254225194 and 12254225203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12254225281) 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, 242606 + ... + 288731.
It is an arithmetic number, because the mean of its divisors is an integer number (3063694908).
Almost surely, 212254225231 is an apocalyptic number.
12254225231 is a deficient number, since it is larger than the sum of its proper divisors (554401).
12254225231 is an equidigital number, since it uses as much as digits as its factorization.
12254225231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 554400.
The product of its digits is 9600, while the sum is 29.
The spelling of 12254225231 in words is "twelve billion, two hundred fifty-four million, two hundred twenty-five thousand, two hundred thirty-one".
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