Base | Representation |
---|---|
bin | 11010100110110… |
… | …00111011111000 |
3 | 120112222001120100 |
4 | 31103120323320 |
5 | 424113433210 |
6 | 34051355400 |
7 | 5350025013 |
oct | 1523307370 |
9 | 515861510 |
10 | 223186680 |
11 | 104a8a502 |
12 | 628b2b60 |
13 | 37315032 |
14 | 218da37a |
15 | 148d95c0 |
hex | d4d8ef8 |
223186680 has 96 divisors (see below), whose sum is σ = 727936560. Its totient is φ = 59304960.
The previous prime is 223186679. The next prime is 223186681. The reversal of 223186680 is 86681322.
223186680 is digitally balanced in base 3, 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 (223186679) and next prime (223186681).
It is a super-3 number, since 3×2231866803 (a number of 26 digits) contains 333 as substring.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223186681) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118224 + ... + 120096.
Almost surely, 2223186680 is an apocalyptic number.
223186680 is a gapful number since it is divisible by the number (20) 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 223186680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363968280).
223186680 is an abundant number, since it is smaller than the sum of its proper divisors (504749880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223186680 is a wasteful number, since it uses less digits than its factorization.
223186680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2221 (or 2214 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The square root of 223186680 is about 14939.4337242079. The cubic root of 223186680 is about 606.5818676843.
The spelling of 223186680 in words is "two hundred twenty-three million, one hundred eighty-six thousand, six hundred eighty".
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