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33148117 = 257128981
BaseRepresentation
bin111111001110…
…0110011010101
32022101002200001
41332130303111
531441214432
63142251301
7551516512
oct176346325
968332601
1033148117
1117790742
12b126b31
136b37b92
14458c309
152d9b9e7
hex1f9ccd5

33148117 has 4 divisors (see below), whose sum is σ = 33277356. Its totient is φ = 33018880.

The previous prime is 33148111. The next prime is 33148121. The reversal of 33148117 is 71184133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71184133 = 611166953.

It can be written as a sum of positive squares in 2 ways, for example, as 32878756 + 269361 = 5734^2 + 519^2 .

It is a cyclic number.

It is not a de Polignac number, because 33148117 - 215 = 33115349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33148111) 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, 64234 + ... + 64747.

It is an arithmetic number, because the mean of its divisors is an integer number (8319339).

Almost surely, 233148117 is an apocalyptic number.

It is an amenable number.

33148117 is a deficient number, since it is larger than the sum of its proper divisors (129239).

33148117 is a wasteful number, since it uses less digits than its factorization.

33148117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129238.

The product of its digits is 2016, while the sum is 28.

The square root of 33148117 is about 5757.4401429802. The cubic root of 33148117 is about 321.2326060621.

The spelling of 33148117 in words is "thirty-three million, one hundred forty-eight thousand, one hundred seventeen".

Divisors: 1 257 128981 33148117