Base | Representation |
---|---|
bin | 10000110010101011… |
… | …100100011001010010 |
3 | 1201112112220120202122 |
4 | 100302223210121102 |
5 | 243411204320000 |
6 | 12141040414242 |
7 | 1205542520426 |
oct | 206253443122 |
9 | 51475816678 |
10 | 18030151250 |
11 | 7712606551 |
12 | 35b2317382 |
13 | 1914559367 |
14 | c30838b86 |
15 | 707d62085 |
hex | 432ae4652 |
18030151250 has 40 divisors (see below), whose sum is σ = 34349888892. Its totient is φ = 7093800000.
The previous prime is 18030151219. The next prime is 18030151291. The reversal of 18030151250 is 5215103081.
It is a happy number.
It can be written as a sum of positive squares in 10 ways, for example, as 9626945689 + 8403205561 = 98117^2 + 91669^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41981 + ... + 194480.
Almost surely, 218030151250 is an apocalyptic number.
18030151250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18030151250 is a deficient number, since it is larger than the sum of its proper divisors (16319737642).
18030151250 is an equidigital number, since it uses as much as digits as its factorization.
18030151250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 236544 (or 236529 counting only the distinct ones).
The product of its (nonzero) digits is 1200, while the sum is 26.
The spelling of 18030151250 in words is "eighteen billion, thirty million, one hundred fifty-one thousand, two hundred fifty".
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