Base | Representation |
---|---|
bin | 11011111101111111… |
… | …100011100110010110 |
3 | 2212111220210221222110 |
4 | 123331333203212112 |
5 | 443000430202220 |
6 | 21443542411450 |
7 | 2112125066211 |
oct | 337577434626 |
9 | 85456727873 |
10 | 30031100310 |
11 | 11810856172 |
12 | 59a1430b86 |
13 | 2aa7963b53 |
14 | 164c622778 |
15 | bab71dbe0 |
hex | 6fdfe3996 |
30031100310 has 32 divisors (see below), whose sum is σ = 72275431680. Its totient is φ = 7985983328.
The previous prime is 30031100293. The next prime is 30031100311. The reversal of 30031100310 is 1300113003.
It is a super-2 number, since 2×300311003102 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30031100311) 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, 1383432 + ... + 1404971.
It is an arithmetic number, because the mean of its divisors is an integer number (2258607240).
Almost surely, 230031100310 is an apocalyptic number.
30031100310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30031100310 is an abundant number, since it is smaller than the sum of its proper divisors (42244331370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30031100310 is a wasteful number, since it uses less digits than its factorization.
30031100310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2788772.
The product of its (nonzero) digits is 27, while the sum is 12.
Adding to 30031100310 its reverse (1300113003), we get a palindrome (31331213313).
The spelling of 30031100310 in words is "thirty billion, thirty-one million, one hundred thousand, three hundred ten".
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