Base | Representation |
---|---|
bin | 11100110110111011… |
… | …000101000111101000 |
3 | 2221222111001111010111 |
4 | 130312323011013220 |
5 | 1001424433300300 |
6 | 22122422224104 |
7 | 2144603410504 |
oct | 346673050750 |
9 | 87874044114 |
10 | 30986228200 |
11 | 12160a10964 |
12 | 6009285034 |
13 | 2bca7bc995 |
14 | 16dd40d304 |
15 | c154d99ba |
hex | 736ec51e8 |
30986228200 has 24 divisors (see below), whose sum is σ = 72042981030. Its totient is φ = 12394491200.
The previous prime is 30986228191. The next prime is 30986228209. The reversal of 30986228200 is 282268903.
It is an interprime number because it is at equal distance from previous prime (30986228191) and next prime (30986228209).
It can be written as a sum of positive squares in 3 ways, for example, as 11594551684 + 19391676516 = 107678^2 + 139254^2 .
It is a Harshad number since it is a multiple of its sum of digits (40).
It is not an unprimeable number, because it can be changed into a prime (30986228209) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77465371 + ... + 77465770.
Almost surely, 230986228200 is an apocalyptic number.
It is an amenable number.
30986228200 is an abundant number, since it is smaller than the sum of its proper divisors (41056752830).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30986228200 is a wasteful number, since it uses less digits than its factorization.
30986228200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 154931157 (or 154931148 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 40.
The spelling of 30986228200 in words is "thirty billion, nine hundred eighty-six million, two hundred twenty-eight thousand, two hundred".
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