Base | Representation |
---|---|
bin | 10110101110111111… |
… | …01110100100100101 |
3 | 1011111121112012001111 |
4 | 23113133232210211 |
5 | 144444032301003 |
6 | 5335043025021 |
7 | 611313535162 |
oct | 132737564445 |
9 | 34447465044 |
10 | 12205353253 |
11 | 51a3670605 |
12 | 244766b171 |
13 | 11c6874622 |
14 | 83add5069 |
15 | 4b67d5e6d |
hex | 2d77ee925 |
12205353253 has 4 divisors (see below), whose sum is σ = 12233156320. Its totient is φ = 12177550188.
The previous prime is 12205353233. The next prime is 12205353287. The reversal of 12205353253 is 35235350221.
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: 35235350221 = 152839 ⋅230539.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12205353253 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 (12205353203) 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, 13900875 + ... + 13901752.
It is an arithmetic number, because the mean of its divisors is an integer number (3058289080).
Almost surely, 212205353253 is an apocalyptic number.
It is an amenable number.
12205353253 is a deficient number, since it is larger than the sum of its proper divisors (27803067).
12205353253 is an equidigital number, since it uses as much as digits as its factorization.
12205353253 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27803066.
The product of its (nonzero) digits is 27000, while the sum is 31.
The spelling of 12205353253 in words is "twelve billion, two hundred five million, three hundred fifty-three thousand, two hundred fifty-three".
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