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33808000 = 27532113
BaseRepresentation
bin1000000011110…
…1111010000000
32100121121212011
42000331322000
532123324000
63204342304
7560235412
oct200757200
970547764
1033808000
11180a14a6
12b3a4994
137009345
1446c09b2
152e7c2ba
hex203de80

33808000 has 64 divisors (see below), whose sum is σ = 84094920. Its totient is φ = 13516800.

The previous prime is 33807989. The next prime is 33808007. The reversal of 33808000 is 80833.

It can be written as a sum of positive squares in 4 ways, for example, as 1272384 + 32535616 = 1128^2 + 5704^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×338080002 = 2285961728000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33808007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14944 + ... + 17056.

Almost surely, 233808000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33808000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42047460).

33808000 is an abundant number, since it is smaller than the sum of its proper divisors (50286920).

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

33808000 is an equidigital number, since it uses as much as digits as its factorization.

33808000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 33808000 is about 5814.4647217091. The cubic root of 33808000 is about 323.3502193564.

Adding to 33808000 its reverse (80833), we get a palindrome (33888833).

It can be divided in two parts, 3380 and 8000, that multiplied together give a square (27040000 = 52002).

The spelling of 33808000 in words is "thirty-three million, eight hundred eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 640 800 1000 1600 2000 2113 3200 4000 4226 8000 8452 10565 16000 16904 21130 33808 42260 52825 67616 84520 105650 135232 169040 211300 264125 270464 338080 422600 528250 676160 845200 1056500 1352320 1690400 2113000 3380800 4226000 6761600 8452000 16904000 33808000