Base | Representation |
---|---|
bin | 11101001000001… |
… | …010111100100011 |
3 | 1021001112120122121 |
4 | 131020022330203 |
5 | 2000100300001 |
6 | 120254045111 |
7 | 15052502452 |
oct | 3510127443 |
9 | 1231476577 |
10 | 488681251 |
11 | 230936503 |
12 | 1177a9797 |
13 | 7a321206 |
14 | 48c8ab99 |
15 | 2cd7e6a1 |
hex | 1d20af23 |
488681251 has 2 divisors, whose sum is σ = 488681252. Its totient is φ = 488681250.
The previous prime is 488681239. The next prime is 488681257. The reversal of 488681251 is 152186884.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 488681251 - 29 = 488680739 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 488681198 and 488681207.
It is not a weakly prime, because it can be changed into another prime (488681257) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244340625 + 244340626.
It is an arithmetic number, because the mean of its divisors is an integer number (244340626).
Almost surely, 2488681251 is an apocalyptic number.
488681251 is a deficient number, since it is larger than the sum of its proper divisors (1).
488681251 is an equidigital number, since it uses as much as digits as its factorization.
488681251 is an evil number, because the sum of its binary digits is even.
The product of its digits is 122880, while the sum is 43.
The square root of 488681251 is about 22106.1360486178. The cubic root of 488681251 is about 787.6656245575.
The spelling of 488681251 in words is "four hundred eighty-eight million, six hundred eighty-one thousand, two hundred fifty-one".
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