Base | Representation |
---|---|
bin | 1011101001000000… |
… | …1010101000010010 |
3 | 22001202212021210000 |
4 | 2322100022220102 |
5 | 22344422100033 |
6 | 1234023150430 |
7 | 140302235064 |
oct | 27220125022 |
9 | 8052767700 |
10 | 3124800018 |
11 | 136396055a |
12 | 7325a5416 |
13 | 3aa4cc1c2 |
14 | 219011734 |
15 | 1344e6a13 |
hex | ba40aa12 |
3124800018 has 40 divisors (see below), whose sum is σ = 7010385228. Its totient is φ = 1040332896.
The previous prime is 3124800011. The next prime is 3124800037. The reversal of 3124800018 is 8100084213.
It can be written as a sum of positive squares in 2 ways, for example, as 2845475649 + 279324369 = 53343^2 + 16713^2 .
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 3124799964 and 3124800000.
It is not an unprimeable number, because it can be changed into a prime (3124800011) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 126880 + ... + 149492.
Almost surely, 23124800018 is an apocalyptic number.
3124800018 is an abundant number, since it is smaller than the sum of its proper divisors (3885585210).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3124800018 is a wasteful number, since it uses less digits than its factorization.
3124800018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23480 (or 23471 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 27.
The square root of 3124800018 is about 55899.9107154922. The cubic root of 3124800018 is about 1461.9776817257.
The spelling of 3124800018 in words is "three billion, one hundred twenty-four million, eight hundred thousand, eighteen".
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