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206234220 = 22354437759
BaseRepresentation
bin11000100101011…
…10001001101100
3112101001210011110
430102232021230
5410243443340
632244152020
75052650643
oct1422561154
9471053143
10206234220
11a6460905
1259098610
133395aaaa
141d56635a
151318b680
hexc4ae26c

206234220 has 48 divisors (see below), whose sum is σ = 578833920. Its totient is φ = 54864576.

The previous prime is 206234209. The next prime is 206234233. The reversal of 206234220 is 22432602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22701 + ... + 30459.

It is an arithmetic number, because the mean of its divisors is an integer number (12059040).

Almost surely, 2206234220 is an apocalyptic number.

206234220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206234220 is an abundant number, since it is smaller than the sum of its proper divisors (372599700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206234220 is a wasteful number, since it uses less digits than its factorization.

206234220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8214 (or 8212 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 206234220 is about 14360.8572167542. The cubic root of 206234220 is about 590.8178068207.

Adding to 206234220 its reverse (22432602), we get a palindrome (228666822).

The spelling of 206234220 in words is "two hundred six million, two hundred thirty-four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 443 886 1329 1772 2215 2658 4430 5316 6645 7759 8860 13290 15518 23277 26580 31036 38795 46554 77590 93108 116385 155180 232770 465540 3437237 6874474 10311711 13748948 17186185 20623422 34372370 41246844 51558555 68744740 103117110 206234220