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33948133 = 171996949
BaseRepresentation
bin1000000110000…
…0000111100101
32100212202002021
42001200013211
532142320013
63211343141
7561361102
oct201400745
970782067
1033948133
111818780a
12b451ab1
13705806b
144719aa9
152ea8a8d
hex20601e5

33948133 has 4 divisors (see below), whose sum is σ = 35945100. Its totient is φ = 31951168.

The previous prime is 33948119. The next prime is 33948137. The reversal of 33948133 is 33184933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33184933 = 157211369.

It can be written as a sum of positive squares in 2 ways, for example, as 27384289 + 6563844 = 5233^2 + 2562^2 .

It is a cyclic number.

It is not a de Polignac number, because 33948133 - 29 = 33947621 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 (33948137) 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, 998458 + ... + 998491.

It is an arithmetic number, because the mean of its divisors is an integer number (8986275).

Almost surely, 233948133 is an apocalyptic number.

It is an amenable number.

33948133 is a deficient number, since it is larger than the sum of its proper divisors (1996967).

33948133 is a wasteful number, since it uses less digits than its factorization.

33948133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996966.

The product of its digits is 23328, while the sum is 34.

The square root of 33948133 is about 5826.5026388049. The cubic root of 33948133 is about 323.7963620292.

The spelling of 33948133 in words is "thirty-three million, nine hundred forty-eight thousand, one hundred thirty-three".

Divisors: 1 17 1996949 33948133