Search a number
-
+
33026231 = 74718033
BaseRepresentation
bin111110111111…
…1000010110111
32022010220110202
41331333002313
531423314411
63135511115
7550501250
oct175770267
968126422
1033026231
1117708107
12b08849b
136ac4564
144559b27
152d7583b
hex1f7f0b7

33026231 has 4 divisors (see below), whose sum is σ = 37744272. Its totient is φ = 28308192.

The previous prime is 33026221. The next prime is 33026233. The reversal of 33026231 is 13262033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13262033 = 22359471.

It is a cyclic number.

It is not a de Polignac number, because 33026231 - 222 = 28831927 is a prime.

It is a super-2 number, since 2×330262312 = 2181463868130722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33026233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2359010 + ... + 2359023.

It is an arithmetic number, because the mean of its divisors is an integer number (9436068).

Almost surely, 233026231 is an apocalyptic number.

33026231 is a deficient number, since it is larger than the sum of its proper divisors (4718041).

33026231 is an equidigital number, since it uses as much as digits as its factorization.

33026231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718040.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 33026231 is about 5746.8453085149. The cubic root of 33026231 is about 320.8383971915.

Adding to 33026231 its reverse (13262033), we get a palindrome (46288264).

The spelling of 33026231 in words is "thirty-three million, twenty-six thousand, two hundred thirty-one".

Divisors: 1 7 4718033 33026231