Base | Representation |
---|---|
bin | 11110001010011… |
… | …00100101000111 |
3 | 122122002202212011 |
4 | 33011030211013 |
5 | 1004233123422 |
6 | 41035035051 |
7 | 6161432026 |
oct | 1705144507 |
9 | 578082764 |
10 | 253020487 |
11 | 11a907045 |
12 | 7089ba87 |
13 | 4055c485 |
14 | 258648bd |
15 | 1732e077 |
hex | f14c947 |
253020487 has 2 divisors, whose sum is σ = 253020488. Its totient is φ = 253020486.
The previous prime is 253020451. The next prime is 253020517. The reversal of 253020487 is 784020352.
253020487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 253020487 - 211 = 253018439 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (253021487) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126510243 + 126510244.
It is an arithmetic number, because the mean of its divisors is an integer number (126510244).
Almost surely, 2253020487 is an apocalyptic number.
253020487 is a deficient number, since it is larger than the sum of its proper divisors (1).
253020487 is an equidigital number, since it uses as much as digits as its factorization.
253020487 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 13440, while the sum is 31.
The square root of 253020487 is about 15906.6177108774. The cubic root of 253020487 is about 632.4874255808.
The spelling of 253020487 in words is "two hundred fifty-three million, twenty thousand, four hundred eighty-seven".
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