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233366420 = 22572534493
BaseRepresentation
bin11011110100011…
…10001110010100
3121021010020112202
431322032032110
5434220211140
635053504032
75532403400
oct1572161624
9537106482
10233366420
1110a802711
12661a2018
133946a651
1422dca100
151574a915
hexde8e394

233366420 has 72 divisors (see below), whose sum is σ = 580966344. Its totient is φ = 78484224.

The previous prime is 233366407. The next prime is 233366453. The reversal of 233366420 is 24663332.

233366420 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 119858704 + 113507716 = 10948^2 + 10654^2 .

233366420 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49694 + ... + 54186.

It is an arithmetic number, because the mean of its divisors is an integer number (8068977).

Almost surely, 2233366420 is an apocalyptic number.

233366420 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 233366420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290483172).

233366420 is an abundant number, since it is smaller than the sum of its proper divisors (347599924).

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

233366420 is a wasteful number, since it uses less digits than its factorization.

233366420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4569 (or 4560 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 233366420 is about 15276.3352935185. The cubic root of 233366420 is about 615.6673479419.

The spelling of 233366420 in words is "two hundred thirty-three million, three hundred sixty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 53 70 98 106 140 196 212 245 265 371 490 530 742 980 1060 1484 1855 2597 3710 4493 5194 7420 8986 10388 12985 17972 22465 25970 31451 44930 51940 62902 89860 125804 157255 220157 238129 314510 440314 476258 629020 880628 952516 1100785 1190645 1666903 2201570 2381290 3333806 4403140 4762580 6667612 8334515 11668321 16669030 23336642 33338060 46673284 58341605 116683210 233366420