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33274213 = 74753459
BaseRepresentation
bin111111011101…
…1100101100101
32022121111122021
41332323211211
532004233323
63145103141
7552553240
oct176734545
968544567
1033274213
1117867455
12b187ab1
136b803ab
1445c2257
152dc405d
hex1fbb965

33274213 has 4 divisors (see below), whose sum is σ = 38027680. Its totient is φ = 28520748.

The previous prime is 33274207. The next prime is 33274231. The reversal of 33274213 is 31247233.

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: 31247233 = 224313931.

It is a cyclic number.

It is not a de Polignac number, because 33274213 - 25 = 33274181 is a prime.

It is a super-2 number, since 2×332742132 = 2214346501538738, 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 (33274243) 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, 2376723 + ... + 2376736.

It is an arithmetic number, because the mean of its divisors is an integer number (9506920).

Almost surely, 233274213 is an apocalyptic number.

It is an amenable number.

33274213 is a deficient number, since it is larger than the sum of its proper divisors (4753467).

33274213 is an equidigital number, since it uses as much as digits as its factorization.

33274213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4753466.

The product of its digits is 3024, while the sum is 25.

The square root of 33274213 is about 5768.3804486181. The cubic root of 33274213 is about 321.6394154237.

The spelling of 33274213 in words is "thirty-three million, two hundred seventy-four thousand, two hundred thirteen".

Divisors: 1 7 4753459 33274213