Base | Representation |
---|---|
bin | 11100111101000010… |
… | …000101010011010101 |
3 | 2222020121220222101201 |
4 | 130331002011103111 |
5 | 1002132203233003 |
6 | 22140523152501 |
7 | 2150256551533 |
oct | 347502052325 |
9 | 88217828351 |
10 | 31088727253 |
11 | 12203859a21 |
12 | 6037675731 |
13 | 2c15ac9acc |
14 | 170cc91153 |
15 | c1e4d4b1d |
hex | 73d0854d5 |
31088727253 has 2 divisors, whose sum is σ = 31088727254. Its totient is φ = 31088727252.
The previous prime is 31088727139. The next prime is 31088727269. The reversal of 31088727253 is 35272788013.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 26972478289 + 4116248964 = 164233^2 + 64158^2 .
It is a cyclic number.
It is not a de Polignac number, because 31088727253 - 213 = 31088719061 is a prime.
It is a super-2 number, since 2×310887272532 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31088727953) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15544363626 + 15544363627.
It is an arithmetic number, because the mean of its divisors is an integer number (15544363627).
Almost surely, 231088727253 is an apocalyptic number.
It is an amenable number.
31088727253 is a deficient number, since it is larger than the sum of its proper divisors (1).
31088727253 is an equidigital number, since it uses as much as digits as its factorization.
31088727253 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 564480, while the sum is 46.
The spelling of 31088727253 in words is "thirty-one billion, eighty-eight million, seven hundred twenty-seven thousand, two hundred fifty-three".
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