Base | Representation |
---|---|
bin | 11100110101001000… |
… | …000001000110000111 |
3 | 2221220101022001012211 |
4 | 130311020001012013 |
5 | 1001344223041114 |
6 | 22115423524251 |
7 | 2144056132555 |
oct | 346510010607 |
9 | 87811261184 |
10 | 30956065159 |
11 | 12145989a28 |
12 | 5bbb159687 |
13 | 2bc448b726 |
14 | 16d93dabd5 |
15 | c12a2c6c4 |
hex | 735201187 |
30956065159 has 4 divisors (see below), whose sum is σ = 30958633720. Its totient is φ = 30953496600.
The previous prime is 30956065111. The next prime is 30956065163. The reversal of 30956065159 is 95156065903.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95156065903 = 31 ⋅3069550513.
It is a cyclic number.
It is not a de Polignac number, because 30956065159 - 225 = 30922510727 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30956065169) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266117 + ... + 1290334.
It is an arithmetic number, because the mean of its divisors is an integer number (7739658430).
Almost surely, 230956065159 is an apocalyptic number.
30956065159 is a deficient number, since it is larger than the sum of its proper divisors (2568561).
30956065159 is a wasteful number, since it uses less digits than its factorization.
30956065159 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2568560.
The product of its (nonzero) digits is 1093500, while the sum is 49.
The spelling of 30956065159 in words is "thirty billion, nine hundred fifty-six million, sixty-five thousand, one hundred fifty-nine".
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