Search a number
-
+
33054231 = 371574011
BaseRepresentation
bin111111000010…
…1111000010111
32022012022212210
41332011320113
531430213411
63140244503
7550646010
oct176057027
968168783
1033054231
1117727151
12b0a0733
136b04222
144566007
152d7dca6
hex1f85e17

33054231 has 8 divisors (see below), whose sum is σ = 50368384. Its totient is φ = 18888120.

The previous prime is 33054223. The next prime is 33054251. The reversal of 33054231 is 13245033.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33054231 - 23 = 33054223 is a prime.

It is a super-2 number, since 2×330542312 = 2185164374002722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1574011 = 33054231 / (3 + 3 + 0 + 5 + 4 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33054198 and 33054207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33054211) 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, 786985 + ... + 787026.

It is an arithmetic number, because the mean of its divisors is an integer number (6296048).

Almost surely, 233054231 is an apocalyptic number.

33054231 is a deficient number, since it is larger than the sum of its proper divisors (17314153).

33054231 is a wasteful number, since it uses less digits than its factorization.

33054231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574021.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 33054231 is about 5749.2809115575. The cubic root of 33054231 is about 320.9290416811.

Adding to 33054231 its reverse (13245033), we get a palindrome (46299264).

The spelling of 33054231 in words is "thirty-three million, fifty-four thousand, two hundred thirty-one".

Divisors: 1 3 7 21 1574011 4722033 11018077 33054231