Base | Representation |
---|---|
bin | 11100110101101101101… |
… | …01010100100001101011 |
3 | 10111201201012210221222200 |
4 | 32122312311110201223 |
5 | 112213340414042344 |
6 | 2035115010151243 |
7 | 131406446153205 |
oct | 16326665244153 |
9 | 3451635727880 |
10 | 990909909099 |
11 | 3522738a1080 |
12 | 140065882523 |
13 | 72599c64126 |
14 | 35d6309d775 |
15 | 1ab986e1069 |
hex | e6b6d5486b |
990909909099 has 48 divisors (see below), whose sum is σ = 1580061600000. Its totient is φ = 593410824000.
The previous prime is 990909909097. The next prime is 990909909107.
990909909099 is nontrivially palindromic in base 10.
It is not a de Polignac number, because 990909909099 - 21 = 990909909097 is a prime.
It is not an unprimeable number, because it can be changed into a prime (990909909097) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4890202 + ... + 5088800.
It is an arithmetic number, because the mean of its divisors is an integer number (32917950000).
Almost surely, 2990909909099 is an apocalyptic number.
990909909099 is a gapful number since it is divisible by the number (99) formed by its first and last digit.
990909909099 is a deficient number, since it is larger than the sum of its proper divisors (589151690901).
990909909099 is a wasteful number, since it uses less digits than its factorization.
990909909099 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 199216 (or 199213 counting only the distinct ones).
The product of its (nonzero) digits is 43046721, while the sum is 72.
The spelling of 990909909099 in words is "nine hundred ninety billion, nine hundred nine million, nine hundred nine thousand, ninety-nine".
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