Base | Representation |
---|---|
bin | 11011101011001010… |
… | …001110100000010111 |
3 | 2211200220021000201212 |
4 | 123223022032200113 |
5 | 441324033133031 |
6 | 21352334212035 |
7 | 2101240304132 |
oct | 335312164027 |
9 | 84626230655 |
10 | 29715130391 |
11 | 11669464301 |
12 | 591365401b |
13 | 2a573640bb |
14 | 161c693219 |
15 | b8db0812b |
hex | 6eb28e817 |
29715130391 has 2 divisors, whose sum is σ = 29715130392. Its totient is φ = 29715130390.
The previous prime is 29715130381. The next prime is 29715130397. The reversal of 29715130391 is 19303151792.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 29715130391 - 26 = 29715130327 is a prime.
It is a Sophie Germain prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (29715130397) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14857565195 + 14857565196.
It is an arithmetic number, because the mean of its divisors is an integer number (14857565196).
Almost surely, 229715130391 is an apocalyptic number.
29715130391 is a deficient number, since it is larger than the sum of its proper divisors (1).
29715130391 is an equidigital number, since it uses as much as digits as its factorization.
29715130391 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 51030, while the sum is 41.
The spelling of 29715130391 in words is "twenty-nine billion, seven hundred fifteen million, one hundred thirty thousand, three hundred ninety-one".
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