Base | Representation |
---|---|
bin | 10110110100111100… |
… | …11110101000010001 |
3 | 1011122002121122221001 |
4 | 23122132132220101 |
5 | 200044332414312 |
6 | 5344030502001 |
7 | 612461551060 |
oct | 133236365021 |
9 | 34562548831 |
10 | 12255357457 |
11 | 52199144a2 |
12 | 2460364901 |
13 | 1204031905 |
14 | 8438d01d7 |
15 | 4badb2057 |
hex | 2da79ea11 |
12255357457 has 64 divisors (see below), whose sum is σ = 15191193600. Its totient is φ = 9667607040.
The previous prime is 12255357431. The next prime is 12255357479. The reversal of 12255357457 is 75475355221.
It is not a de Polignac number, because 12255357457 - 227 = 12121139729 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12255357487) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93552282 + ... + 93552412.
It is an arithmetic number, because the mean of its divisors is an integer number (237362400).
Almost surely, 212255357457 is an apocalyptic number.
It is an amenable number.
12255357457 is a deficient number, since it is larger than the sum of its proper divisors (2935836143).
12255357457 is a wasteful number, since it uses less digits than its factorization.
12255357457 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 406.
The product of its digits is 1470000, while the sum is 46.
The spelling of 12255357457 in words is "twelve billion, two hundred fifty-five million, three hundred fifty-seven thousand, four hundred fifty-seven".
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