Base | Representation |
---|---|
bin | 11011111111100010… |
… | …100101001000011101 |
3 | 2212120201122210101200 |
4 | 123333202211020131 |
5 | 443024101340340 |
6 | 21450311030113 |
7 | 2112561533112 |
oct | 337742451035 |
9 | 85521583350 |
10 | 30057058845 |
11 | 11824476200 |
12 | 59aa06b339 |
13 | 2ab0152428 |
14 | 1651c5c909 |
15 | badb4a330 |
hex | 6ff8a521d |
30057058845 has 144 divisors (see below), whose sum is σ = 62730748080. Its totient is φ = 13241733120.
The previous prime is 30057058751. The next prime is 30057058849. The reversal of 30057058845 is 54885075003.
30057058845 is a `hidden beast` number, since 30 + 0 + 570 + 5 + 8 + 8 + 45 = 666.
It can be written as a sum of positive squares in 8 ways, for example, as 87216921 + 29969841924 = 9339^2 + 173118^2 .
It is not a de Polignac number, because 30057058845 - 212 = 30057054749 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 30057058845.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30057058849) by changing a digit.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2678787 + ... + 2689983.
It is an arithmetic number, because the mean of its divisors is an integer number (435630195).
Almost surely, 230057058845 is an apocalyptic number.
It is an amenable number.
30057058845 is an abundant number, since it is smaller than the sum of its proper divisors (32673689235).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30057058845 is a wasteful number, since it uses less digits than its factorization.
30057058845 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11276 (or 11262 counting only the distinct ones).
The product of its (nonzero) digits is 672000, while the sum is 45.
The spelling of 30057058845 in words is "thirty billion, fifty-seven million, fifty-eight thousand, eight hundred forty-five".
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