Base | Representation |
---|---|
bin | 10110011010001101… |
… | …01111111100100000 |
3 | 1011001110111210210021 |
4 | 23031012233330200 |
5 | 144114421024440 |
6 | 5305454443224 |
7 | 604066044211 |
oct | 131506577440 |
9 | 34043453707 |
10 | 12031033120 |
11 | 5114228287 |
12 | 23b9203514 |
13 | 119970bb12 |
14 | 821bb9408 |
15 | 4a635084a |
hex | 2cd1aff20 |
12031033120 has 48 divisors (see below), whose sum is σ = 28630837368. Its totient is φ = 4777277440.
The previous prime is 12031033117. The next prime is 12031033121. The reversal of 12031033120 is 2133013021.
It can be written as a sum of positive squares in 4 ways, for example, as 11034241936 + 996791184 = 105044^2 + 31572^2 .
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 12031033094 and 12031033103.
It is not an unprimeable number, because it can be changed into a prime (12031033121) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252511 + ... + 296350.
Almost surely, 212031033120 is an apocalyptic number.
12031033120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12031033120 is an abundant number, since it is smaller than the sum of its proper divisors (16599804248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12031033120 is a wasteful number, since it uses less digits than its factorization.
12031033120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 549013 (or 549005 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 12031033120 its reverse (2133013021), we get a palindrome (14164046141).
The spelling of 12031033120 in words is "twelve billion, thirty-one million, thirty-three thousand, one hundred twenty".
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