Base | Representation |
---|---|
bin | 101110100010… |
… | …101011110000 |
3 | 211221212012100 |
4 | 232202223300 |
5 | 11110410223 |
6 | 1113300400 |
7 | 205463343 |
oct | 56425360 |
9 | 24855170 |
10 | 12200688 |
11 | 6983615 |
12 | 4104700 |
13 | 26b2456 |
14 | 189845a |
15 | 1110043 |
hex | ba2af0 |
12200688 has 60 divisors (see below), whose sum is σ = 34400080. Its totient is φ = 4036608.
The previous prime is 12200687. The next prime is 12200689. The reversal of 12200688 is 88600221.
12200688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (12200687) and next prime (12200689).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12200687) 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, 27573 + ... + 28011.
Almost surely, 212200688 is an apocalyptic number.
12200688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12200688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17200040).
12200688 is an abundant number, since it is smaller than the sum of its proper divisors (22199392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12200688 is a wasteful number, since it uses less digits than its factorization.
12200688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 646 (or 637 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 27.
The square root of 12200688 is about 3492.9483248396. The cubic root of 12200688 is about 230.2120791175.
The spelling of 12200688 in words is "twelve million, two hundred thousand, six hundred eighty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •