Base | Representation |
---|---|
bin | 11100001000111101… |
… | …011010011001010101 |
3 | 2212222202000111020021 |
4 | 130020331122121111 |
5 | 443340030301301 |
6 | 21514114105141 |
7 | 2116521002461 |
oct | 341075323125 |
9 | 85882014207 |
10 | 30215087701 |
11 | 118a56a1667 |
12 | 5a32b7b1b1 |
13 | 2b06b02926 |
14 | 1668c374a1 |
15 | bbc9638a1 |
hex | 708f5a655 |
30215087701 has 2 divisors, whose sum is σ = 30215087702. Its totient is φ = 30215087700.
The previous prime is 30215087689. The next prime is 30215087711. The reversal of 30215087701 is 10778051203.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 19037100625 + 11177987076 = 137975^2 + 105726^2 .
It is an emirp because it is prime and its reverse (10778051203) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30215087701 - 213 = 30215079509 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30215087711) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15107543850 + 15107543851.
It is an arithmetic number, because the mean of its divisors is an integer number (15107543851).
Almost surely, 230215087701 is an apocalyptic number.
It is an amenable number.
30215087701 is a deficient number, since it is larger than the sum of its proper divisors (1).
30215087701 is an equidigital number, since it uses as much as digits as its factorization.
30215087701 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 11760, while the sum is 34.
The spelling of 30215087701 in words is "thirty billion, two hundred fifteen million, eighty-seven thousand, seven hundred one".
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