Base | Representation |
---|---|
bin | 101110001001011000… |
… | …0101011110100011010 |
3 | 100110210101020210201200 |
4 | 1130102300223310122 |
5 | 3110423321000330 |
6 | 113305255255030 |
7 | 10105523413416 |
oct | 1342260536432 |
9 | 313711223650 |
10 | 99099000090 |
11 | 39033890582 |
12 | 1725807a476 |
13 | 9463c55bbc |
14 | 4b21523d46 |
15 | 28a00b1a60 |
hex | 1712c2bd1a |
99099000090 has 48 divisors (see below), whose sum is σ = 257729952168. Its totient is φ = 26418958848.
The previous prime is 99099000067. The next prime is 99099000107. The reversal of 99099000090 is 9000099099.
It can be written as a sum of positive squares in 4 ways, for example, as 68354533809 + 30744466281 = 261447^2 + 175341^2 .
It is a super-2 number, since 2×990990000902 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170142 + ... + 476598.
Almost surely, 299099000090 is an apocalyptic number.
99099000090 is a gapful number since it is divisible by the number (90) formed by its first and last digit.
99099000090 is an abundant number, since it is smaller than the sum of its proper divisors (158630952078).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99099000090 is a wasteful number, since it uses less digits than its factorization.
99099000090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 310063 (or 310060 counting only the distinct ones).
The product of its (nonzero) digits is 59049, while the sum is 45.
The spelling of 99099000090 in words is "ninety-nine billion, ninety-nine million, ninety", and thus it is an aban number and an uban number.
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