Base | Representation |
---|---|
bin | 10110111010010001… |
… | …11001010000011000 |
3 | 1011202012200022111201 |
4 | 23131020321100120 |
5 | 200142301443000 |
6 | 5352304203544 |
7 | 613543352455 |
oct | 133510712030 |
9 | 34665608451 |
10 | 12300031000 |
11 | 5242057384 |
12 | 24733095b4 |
13 | 121037376a |
14 | 8497dc82c |
15 | 4bec8896a |
hex | 2dd239418 |
12300031000 has 64 divisors (see below), whose sum is σ = 29774628000. Its totient is φ = 4750345600.
The previous prime is 12300030997. The next prime is 12300031039. The reversal of 12300031000 is 13000321.
It is a super-2 number, since 2×123000310002 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a congruent number.
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, 183070 + ... + 241069.
Almost surely, 212300031000 is an apocalyptic number.
12300031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12300031000 is an abundant number, since it is smaller than the sum of its proper divisors (17474597000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12300031000 is a wasteful number, since it uses less digits than its factorization.
12300031000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 424189 (or 424175 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 10.
Adding to 12300031000 its reverse (13000321), we get a palindrome (12313031321).
The spelling of 12300031000 in words is "twelve billion, three hundred million, thirty-one thousand".
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