Search a number
-
+
33122432 = 27725281
BaseRepresentation
bin111111001011…
…0100010000000
32022022210102202
41332112202000
531434404212
63141532332
7551351600
oct176264200
968283382
1033122432
1117773412
12b1140a8
136b29295
144582c00
152d940c2
hex1f96880

33122432 has 48 divisors (see below), whose sum is σ = 76773870. Its totient is φ = 14192640.

The previous prime is 33122429. The next prime is 33122459. The reversal of 33122432 is 23422133.

It can be written as a sum of positive squares in only one way, i.e., 31990336 + 1132096 = 5656^2 + 1064^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3632 + ... + 8912.

Almost surely, 233122432 is an apocalyptic number.

33122432 is a gapful number since it is divisible by the number (32) 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 33122432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38386935).

33122432 is an abundant number, since it is smaller than the sum of its proper divisors (43651438).

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

33122432 is an equidigital number, since it uses as much as digits as its factorization.

33122432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5309 (or 5290 counting only the distinct ones).

The product of its digits is 864, while the sum is 20.

The square root of 33122432 is about 5755.2091187028. The cubic root of 33122432 is about 321.1496150084.

Adding to 33122432 its reverse (23422133), we get a palindrome (56544565).

The spelling of 33122432 in words is "thirty-three million, one hundred twenty-two thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 392 448 784 896 1568 3136 5281 6272 10562 21124 36967 42248 73934 84496 147868 168992 258769 295736 337984 517538 591472 675968 1035076 1182944 2070152 2365888 4140304 4731776 8280608 16561216 33122432