Base | Representation |
---|---|
bin | 1111010111101… |
… | …01110101010000 |
3 | 22222121111002201 |
4 | 13223311311100 |
5 | 231001330300 |
6 | 20443252544 |
7 | 3123625354 |
oct | 753656520 |
9 | 288544081 |
10 | 128933200 |
11 | 66863470 |
12 | 3721a154 |
13 | 20934046 |
14 | 131a3464 |
15 | b4bc66a |
hex | 7af5d50 |
128933200 has 60 divisors (see below), whose sum is σ = 337933728. Its totient is φ = 46883200.
The previous prime is 128933191. The next prime is 128933201. The reversal of 128933200 is 2339821.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128933201) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10252 + ... + 19051.
Almost surely, 2128933200 is an apocalyptic number.
128933200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
128933200 is an abundant number, since it is smaller than the sum of its proper divisors (209000528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128933200 is a wasteful number, since it uses less digits than its factorization.
128933200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29332 (or 29321 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 128933200 is about 11354.8756047788. The cubic root of 128933200 is about 505.1902038156.
The spelling of 128933200 in words is "one hundred twenty-eight million, nine hundred thirty-three thousand, two hundred".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •