Base | Representation |
---|---|
bin | 111111011100100… |
… | …0111101100010010 |
3 | 12111100220110210200 |
4 | 1332321013230102 |
5 | 13324444343210 |
6 | 551125440030 |
7 | 103520243040 |
oct | 17671075422 |
9 | 5440813720 |
10 | 2128902930 |
11 | 9a278a310 |
12 | 4b4b70016 |
13 | 27c09a69b |
14 | 162a51390 |
15 | c6d760c0 |
hex | 7ee47b12 |
2128902930 has 96 divisors (see below), whose sum is σ = 6900985728. Its totient is φ = 442368000.
The previous prime is 2128902883. The next prime is 2128902973. The reversal of 2128902930 is 392098212.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146671 + ... + 160530.
It is an arithmetic number, because the mean of its divisors is an integer number (71885268).
Almost surely, 22128902930 is an apocalyptic number.
2128902930 is an abundant number, since it is smaller than the sum of its proper divisors (4772082798).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2128902930 is a wasteful number, since it uses less digits than its factorization.
2128902930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 307232 (or 307229 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The square root of 2128902930 is about 46140.0360858116. The cubic root of 2128902930 is about 1286.4274144917.
The spelling of 2128902930 in words is "two billion, one hundred twenty-eight million, nine hundred two thousand, nine hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •