Base | Representation |
---|---|
bin | 11011111000110100… |
… | …01010011101110001 |
3 | 1102122102201021110221 |
4 | 31330122022131301 |
5 | 221130331312111 |
6 | 10513400453041 |
7 | 1040011023115 |
oct | 157432123561 |
9 | 42572637427 |
10 | 14972135281 |
11 | 639341a924 |
12 | 2a9a17a181 |
13 | 1547b40c5c |
14 | a2064d745 |
15 | 5c965d371 |
hex | 37c68a771 |
14972135281 has 2 divisors, whose sum is σ = 14972135282. Its totient is φ = 14972135280.
The previous prime is 14972135219. The next prime is 14972135309. The reversal of 14972135281 is 18253127941.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 14024480625 + 947654656 = 118425^2 + 30784^2 .
It is a cyclic number.
It is not a de Polignac number, because 14972135281 - 217 = 14972004209 is a prime.
It is a super-2 number, since 2×149721352812 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (14972135081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7486067640 + 7486067641.
It is an arithmetic number, because the mean of its divisors is an integer number (7486067641).
Almost surely, 214972135281 is an apocalyptic number.
It is an amenable number.
14972135281 is a deficient number, since it is larger than the sum of its proper divisors (1).
14972135281 is an equidigital number, since it uses as much as digits as its factorization.
14972135281 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 120960, while the sum is 43.
The spelling of 14972135281 in words is "fourteen billion, nine hundred seventy-two million, one hundred thirty-five thousand, two hundred eighty-one".
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