Base | Representation |
---|---|
bin | 11100101110010101… |
… | …011000111111010011 |
3 | 2221121102220120002110 |
4 | 130232111120333103 |
5 | 1001131041133022 |
6 | 22100233520403 |
7 | 2141203532325 |
oct | 345625307723 |
9 | 87542816073 |
10 | 30842130387 |
11 | 12097640062 |
12 | 5b88b73103 |
13 | 2ba69a93c3 |
14 | 16c821d615 |
15 | c07a2400c |
hex | 72e558fd3 |
30842130387 has 16 divisors (see below), whose sum is σ = 41351094432. Its totient is φ = 20447581440.
The previous prime is 30842130383. The next prime is 30842130563. The reversal of 30842130387 is 78303124803.
It is not a de Polignac number, because 30842130387 - 22 = 30842130383 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30842130383) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397333 + ... + 468569.
It is an arithmetic number, because the mean of its divisors is an integer number (2584443402).
Almost surely, 230842130387 is an apocalyptic number.
30842130387 is a deficient number, since it is larger than the sum of its proper divisors (10508964045).
30842130387 is a wasteful number, since it uses less digits than its factorization.
30842130387 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 72038.
The product of its (nonzero) digits is 96768, while the sum is 39.
The spelling of 30842130387 in words is "thirty billion, eight hundred forty-two million, one hundred thirty thousand, three hundred eighty-seven".
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