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233233820 = 22511661691
BaseRepresentation
bin11011110011011…
…01110110011100
3121020212111122122
431321231312130
5434201440240
635051002112
75531311661
oct1571556634
9536774578
10233233820
1110a722026
1266139338
13394221a1
1422d93a68
15157214b5
hexde6dd9c

233233820 has 12 divisors (see below), whose sum is σ = 489791064. Its totient is φ = 93293520.

The previous prime is 233233817. The next prime is 233233837. The reversal of 233233820 is 28332332.

It is a self number, because there is not a number n which added to its sum of digits gives 233233820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5830826 + ... + 5830865.

It is an arithmetic number, because the mean of its divisors is an integer number (40815922).

Almost surely, 2233233820 is an apocalyptic number.

233233820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233233820 is an abundant number, since it is smaller than the sum of its proper divisors (256557244).

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

233233820 is a wasteful number, since it uses less digits than its factorization.

233233820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11661700 (or 11661698 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 233233820 is about 15271.9946306958. The cubic root of 233233820 is about 615.5507173980.

The spelling of 233233820 in words is "two hundred thirty-three million, two hundred thirty-three thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 11661691 23323382 46646764 58308455 116616910 233233820