Base | Representation |
---|---|
bin | 11100101100010110… |
… | …111001111001001010 |
3 | 2221112010111222112102 |
4 | 130230112321321022 |
5 | 1001044044112444 |
6 | 22053051113402 |
7 | 2140321643231 |
oct | 345426717112 |
9 | 87463458472 |
10 | 30808972874 |
11 | 1207a953359 |
12 | 5b79a42862 |
13 | 2b9cb6a184 |
14 | 16c3a6bb18 |
15 | c04b7484e |
hex | 72c5b9e4a |
30808972874 has 16 divisors (see below), whose sum is σ = 48962060928. Its totient is φ = 14489403072.
The previous prime is 30808972871. The next prime is 30808972877. The reversal of 30808972874 is 47827980803.
It is an interprime number because it is at equal distance from previous prime (30808972871) and next prime (30808972877).
It is not an unprimeable number, because it can be changed into a prime (30808972871) 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, 223154 + ... + 333789.
It is an arithmetic number, because the mean of its divisors is an integer number (3060128808).
Almost surely, 230808972874 is an apocalyptic number.
30808972874 is a gapful number since it is divisible by the number (34) formed by its first and last digit.
30808972874 is a deficient number, since it is larger than the sum of its proper divisors (18153088054).
30808972874 is a wasteful number, since it uses less digits than its factorization.
30808972874 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 558589.
The product of its (nonzero) digits is 5419008, while the sum is 56.
The spelling of 30808972874 in words is "thirty billion, eight hundred eight million, nine hundred seventy-two thousand, eight hundred seventy-four".
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