Base | Representation |
---|---|
bin | 11110000100111… |
… | …11110101010111 |
3 | 122120202211020221 |
4 | 33002133311113 |
5 | 1004043003134 |
6 | 41011535211 |
7 | 6152424115 |
oct | 1702376527 |
9 | 576684227 |
10 | 252312919 |
11 | 11a473481 |
12 | 705ba507 |
13 | 403723b1 |
14 | 2571cab5 |
15 | 1723e5b4 |
hex | f09fd57 |
252312919 has 2 divisors, whose sum is σ = 252312920. Its totient is φ = 252312918.
The previous prime is 252312917. The next prime is 252312923. The reversal of 252312919 is 919213252.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 252312919 - 21 = 252312917 is a prime.
It is a super-2 number, since 2×2523129192 = 127323618188601122, which contains 22 as substring.
Together with 252312917, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (252312917) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126156459 + 126156460.
It is an arithmetic number, because the mean of its divisors is an integer number (126156460).
Almost surely, 2252312919 is an apocalyptic number.
252312919 is a deficient number, since it is larger than the sum of its proper divisors (1).
252312919 is an equidigital number, since it uses as much as digits as its factorization.
252312919 is an evil number, because the sum of its binary digits is even.
The product of its digits is 9720, while the sum is 34.
The square root of 252312919 is about 15884.3608307039. The cubic root of 252312919 is about 631.8972946053.
The spelling of 252312919 in words is "two hundred fifty-two million, three hundred twelve thousand, nine hundred nineteen".
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