Base | Representation |
---|---|
bin | 11100110010000111… |
… | …010010000011001010 |
3 | 2221202212020010211122 |
4 | 130302013102003022 |
5 | 1001243304301220 |
6 | 22110420555242 |
7 | 2142603522344 |
oct | 346207220312 |
9 | 87685203748 |
10 | 30905540810 |
11 | 1211a410271 |
12 | 5ba6252b22 |
13 | 2bb6b7b771 |
14 | 16d2808294 |
15 | c0d39c425 |
hex | 7321d20ca |
30905540810 has 32 divisors (see below), whose sum is σ = 57070490112. Its totient is φ = 12045890880.
The previous prime is 30905540807. The next prime is 30905540821. The reversal of 30905540810 is 1804550903.
It is a super-2 number, since 2×309055408102 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171482 + ... + 302021.
It is an arithmetic number, because the mean of its divisors is an integer number (1783452816).
Almost surely, 230905540810 is an apocalyptic number.
30905540810 is a deficient number, since it is larger than the sum of its proper divisors (26164949302).
30905540810 is a wasteful number, since it uses less digits than its factorization.
30905540810 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 473678.
The product of its (nonzero) digits is 21600, while the sum is 35.
The spelling of 30905540810 in words is "thirty billion, nine hundred five million, five hundred forty thousand, eight hundred ten".
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