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33234161 = 42178941
BaseRepresentation
bin111111011000…
…1110011110001
32022112110200212
41332301303301
532001443121
63144153505
7552325412
oct176616361
968473625
1033234161
111783a354
12b168895
136b680ac
1445b1809
152db725b
hex1fb1cf1

33234161 has 4 divisors (see below), whose sum is σ = 33313524. Its totient is φ = 33154800.

The previous prime is 33234121. The next prime is 33234163. The reversal of 33234161 is 16143233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16143233 = 92917377.

It can be written as a sum of positive squares in 2 ways, for example, as 1874161 + 31360000 = 1369^2 + 5600^2 .

It is a cyclic number.

It is not a de Polignac number, because 33234161 - 214 = 33217777 is a prime.

It is a super-2 number, since 2×332341612 = 2209018914747842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33234163) 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, 39050 + ... + 39891.

It is an arithmetic number, because the mean of its divisors is an integer number (8328381).

Almost surely, 233234161 is an apocalyptic number.

It is an amenable number.

33234161 is a deficient number, since it is larger than the sum of its proper divisors (79363).

33234161 is an equidigital number, since it uses as much as digits as its factorization.

33234161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79362.

The product of its digits is 1296, while the sum is 23.

The square root of 33234161 is about 5764.9077182553. The cubic root of 33234161 is about 321.5103117029.

Adding to 33234161 its reverse (16143233), we get a palindrome (49377394).

The spelling of 33234161 in words is "thirty-three million, two hundred thirty-four thousand, one hundred sixty-one".

Divisors: 1 421 78941 33234161