| Base | Representation |
|---|---|
| bin | 11000100110111… |
| … | …10111001001000 |
| 3 | 112101102221000200 |
| 4 | 30103132321020 |
| 5 | 410321340424 |
| 6 | 32252332200 |
| 7 | 5054442000 |
| oct | 1423367110 |
| 9 | 471387020 |
| 10 | 206433864 |
| 11 | a65878aa |
| 12 | 59174060 |
| 13 | 339ca920 |
| 14 | 1d5b9000 |
| 15 | 131ca8c9 |
| hex | c4dee48 |
206433864 has 192 divisors, whose sum is σ = 703248000. Its totient is φ = 54359424.
The previous prime is 206433863. The next prime is 206433869. The reversal of 206433864 is 468334602.
It is a happy number.
206433864 is a `hidden beast` number, since 2 + 0 + 643 + 3 + 8 + 6 + 4 = 666.
206433864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2064338642 = 85229880411940992, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (206433863) 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, 320727 + ... + 321369.
It is an arithmetic number, because the mean of its divisors is an integer number (3662750).
Almost surely, 2206433864 is an apocalyptic number.
206433864 is a gapful number since it is divisible by the number (24) 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 206433864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351624000).
206433864 is an abundant number, since it is smaller than the sum of its proper divisors (496814136).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
206433864 is a wasteful number, since it uses less digits than its factorization.
206433864 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 689 (or 668 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 36.
The square root of 206433864 is about 14367.8065131738. The cubic root of 206433864 is about 591.0083914052.
The spelling of 206433864 in words is "two hundred six million, four hundred thirty-three thousand, eight hundred sixty-four".
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