Base | Representation |
---|---|
bin | 10111010001011000… |
… | …10110001111111011 |
3 | 1012020201102120100102 |
4 | 23220230112033323 |
5 | 201041412433141 |
6 | 5423431030015 |
7 | 621416115062 |
oct | 135054261773 |
9 | 35221376312 |
10 | 12493874171 |
11 | 5331514649 |
12 | 250820b30b |
13 | 124158356c |
14 | 86745b1d9 |
15 | 4d1cc899b |
hex | 2e8b163fb |
12493874171 has 2 divisors, whose sum is σ = 12493874172. Its totient is φ = 12493874170.
The previous prime is 12493874131. The next prime is 12493874179. The reversal of 12493874171 is 17147839421.
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (17147839421) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12493874171 is a prime.
It is not a weakly prime, because it can be changed into another prime (12493874179) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6246937085 + 6246937086.
It is an arithmetic number, because the mean of its divisors is an integer number (6246937086).
Almost surely, 212493874171 is an apocalyptic number.
12493874171 is a deficient number, since it is larger than the sum of its proper divisors (1).
12493874171 is an equidigital number, since it uses as much as digits as its factorization.
12493874171 is an evil number, because the sum of its binary digits is even.
The product of its digits is 338688, while the sum is 47.
The spelling of 12493874171 in words is "twelve billion, four hundred ninety-three million, eight hundred seventy-four thousand, one hundred seventy-one".
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