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33396149 = 73945191
BaseRepresentation
bin111111101100…
…1010110110101
32022211200220102
41333121112311
532022134044
63151443445
7553601603
oct177312665
968750812
1033396149
1117940026
12b226585
136bc3a47
144614873
152dea24e
hex1fd95b5

33396149 has 4 divisors (see below), whose sum is σ = 33442080. Its totient is φ = 33350220.

The previous prime is 33396137. The next prime is 33396157. The reversal of 33396149 is 94169333.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94169333 = 412296813.

It is a cyclic number.

It is not a de Polignac number, because 33396149 - 224 = 16618933 is a prime.

It is a super-2 number, since 2×333961492 = 2230605536060402, 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 (33396119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21857 + ... + 23334.

It is an arithmetic number, because the mean of its divisors is an integer number (8360520).

Almost surely, 233396149 is an apocalyptic number.

It is an amenable number.

33396149 is a deficient number, since it is larger than the sum of its proper divisors (45931).

33396149 is an equidigital number, since it uses as much as digits as its factorization.

33396149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45930.

The product of its digits is 52488, while the sum is 38.

The square root of 33396149 is about 5778.9401277397. The cubic root of 33396149 is about 322.0318275446.

The spelling of 33396149 in words is "thirty-three million, three hundred ninety-six thousand, one hundred forty-nine".

Divisors: 1 739 45191 33396149