Base | Representation |
---|---|
bin | 11111101001110… |
… | …001101010001111 |
3 | 1101000020212210121 |
4 | 133221301222033 |
5 | 2041421420012 |
6 | 124410045411 |
7 | 16105544113 |
oct | 3751615217 |
9 | 1330225717 |
10 | 531045007 |
11 | 252840a79 |
12 | 129a19867 |
13 | 8603491c |
14 | 50757743 |
15 | 3194ba07 |
hex | 1fa71a8f |
531045007 has 2 divisors, whose sum is σ = 531045008. Its totient is φ = 531045006.
The previous prime is 531044993. The next prime is 531045019. The reversal of 531045007 is 700540135.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 531045007 - 219 = 530520719 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (531040007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265522503 + 265522504.
It is an arithmetic number, because the mean of its divisors is an integer number (265522504).
Almost surely, 2531045007 is an apocalyptic number.
531045007 is a deficient number, since it is larger than the sum of its proper divisors (1).
531045007 is an equidigital number, since it uses as much as digits as its factorization.
531045007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2100, while the sum is 25.
The square root of 531045007 is about 23044.4137916329. The cubic root of 531045007 is about 809.7987647227.
The spelling of 531045007 in words is "five hundred thirty-one million, forty-five thousand, seven".
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