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233213040 = 243351011069
BaseRepresentation
bin11011110011010…
…00110001110000
3121020211110011000
431321220301300
5434200304130
635050322000
75531164254
oct1571506160
9536743130
10233213040
1110a708455
1266129300
13394158a8
1422d8a264
151571a260
hexde68c70

233213040 has 160 divisors (see below), whose sum is σ = 812001600. Its totient is φ = 61516800.

The previous prime is 233213039. The next prime is 233213053. The reversal of 233213040 is 40312332.

233213040 is digitally balanced in base 2, 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 (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217626 + ... + 218694.

It is an arithmetic number, because the mean of its divisors is an integer number (5075010).

Almost surely, 2233213040 is an apocalyptic number.

233213040 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 233213040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406000800).

233213040 is an abundant number, since it is smaller than the sum of its proper divisors (578788560).

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

233213040 is a wasteful number, since it uses less digits than its factorization.

233213040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 233213040 is about 15271.3142852866. The cubic root of 233213040 is about 615.5324359958.

Adding to 233213040 its reverse (40312332), we get a palindrome (273525372).

The spelling of 233213040 in words is "two hundred thirty-three million, two hundred thirteen thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 101 108 120 135 144 180 202 216 240 270 303 360 404 432 505 540 606 720 808 909 1010 1069 1080 1212 1515 1616 1818 2020 2138 2160 2424 2727 3030 3207 3636 4040 4276 4545 4848 5345 5454 6060 6414 7272 8080 8552 9090 9621 10690 10908 12120 12828 13635 14544 16035 17104 18180 19242 21380 21816 24240 25656 27270 28863 32070 36360 38484 42760 43632 48105 51312 54540 57726 64140 72720 76968 85520 96210 107969 109080 115452 128280 144315 153936 192420 215938 218160 230904 256560 288630 323907 384840 431876 461808 539845 577260 647814 769680 863752 971721 1079690 1154520 1295628 1619535 1727504 1943442 2159380 2309040 2591256 2915163 3239070 3886884 4318760 4858605 5182512 5830326 6478140 7773768 8637520 9717210 11660652 12956280 14575815 15547536 19434420 23321304 25912560 29151630 38868840 46642608 58303260 77737680 116606520 233213040