Base | Representation |
---|---|
bin | 11100001111111001… |
… | …100001111100001100 |
3 | 2220021212002101100021 |
4 | 130033321201330030 |
5 | 444104331314130 |
6 | 21533433311524 |
7 | 2122433404612 |
oct | 341771417414 |
9 | 86255071307 |
10 | 30331510540 |
11 | 1195538a891 |
12 | 5a65b655a4 |
13 | 2b24c76596 |
14 | 167a4a16b2 |
15 | bc7cae37a |
hex | 70fe61f0c |
30331510540 has 24 divisors (see below), whose sum is σ = 65249739072. Its totient is φ = 11836686720.
The previous prime is 30331510523. The next prime is 30331510543. The reversal of 30331510540 is 4501513303.
It is a zygodrome in base 2.
It is not an unprimeable number, because it can be changed into a prime (30331510543) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18494004 + ... + 18495643.
It is an arithmetic number, because the mean of its divisors is an integer number (2718739128).
Almost surely, 230331510540 is an apocalyptic number.
It is an amenable number.
30331510540 is an abundant number, since it is smaller than the sum of its proper divisors (34918228532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30331510540 is a wasteful number, since it uses less digits than its factorization.
30331510540 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 36989697 (or 36989695 counting only the distinct ones).
The product of its (nonzero) digits is 2700, while the sum is 25.
The spelling of 30331510540 in words is "thirty billion, three hundred thirty-one million, five hundred ten thousand, five hundred forty".
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