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233226280 = 2357389191
BaseRepresentation
bin11011110011011…
…00000000101000
3121020212010022101
431321230000220
5434201220110
635050503144
75531251000
oct1571540050
9536763271
10233226280
1110a7173a1
1266134ab4
133941b921
1422d91000
151571e13a
hexde6c028

233226280 has 128 divisors (see below), whose sum is σ = 622080000. Its totient is φ = 78650880.

The previous prime is 233226277. The next prime is 233226289. The reversal of 233226280 is 82622332.

233226280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (233226289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1220985 + ... + 1221175.

It is an arithmetic number, because the mean of its divisors is an integer number (4860000).

Almost surely, 2233226280 is an apocalyptic number.

233226280 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 233226280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311040000).

233226280 is an abundant number, since it is smaller than the sum of its proper divisors (388853720).

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

233226280 is a wasteful number, since it uses less digits than its factorization.

233226280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 233226280 is about 15271.7477716206. The cubic root of 233226280 is about 615.5440841370.

The spelling of 233226280 in words is "two hundred thirty-three million, two hundred twenty-six thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 89 98 140 178 191 196 245 280 343 356 382 392 445 490 623 686 712 764 890 955 980 1246 1337 1372 1528 1715 1780 1910 1960 2492 2674 2744 3115 3430 3560 3820 4361 4984 5348 6230 6685 6860 7640 8722 9359 10696 12460 13370 13720 16999 17444 18718 21805 24920 26740 30527 33998 34888 37436 43610 46795 53480 61054 65513 67996 74872 84995 87220 93590 118993 122108 131026 135992 152635 169990 174440 187180 237986 244216 262052 305270 327565 339980 374360 475972 524104 594965 610540 655130 679960 832951 951944 1189930 1221080 1310260 1665902 2379860 2620520 3331804 4164755 4759720 5830657 6663608 8329510 11661314 16659020 23322628 29153285 33318040 46645256 58306570 116613140 233226280