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33938069 = 1117971871
BaseRepresentation
bin1000000101110…
…1101010010101
32100212020021112
42001131222111
532142004234
63211224405
7561316544
oct201355225
970766245
1033938069
11181801a0
12b448105
1370535c9
14471615b
152ea5ace
hex205da95

33938069 has 16 divisors (see below), whose sum is σ = 39626496. Its totient is φ = 28723200.

The previous prime is 33938063. The next prime is 33938077. The reversal of 33938069 is 96083933.

It is not a de Polignac number, because 33938069 - 216 = 33872533 is a prime.

It is a super-2 number, since 2×339380692 = 2303585054897522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33938063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17204 + ... + 19074.

It is an arithmetic number, because the mean of its divisors is an integer number (2476656).

Almost surely, 233938069 is an apocalyptic number.

It is an amenable number.

33938069 is a deficient number, since it is larger than the sum of its proper divisors (5688427).

33938069 is a wasteful number, since it uses less digits than its factorization.

33938069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 33938069 is about 5825.6389349152. The cubic root of 33938069 is about 323.7643621481.

The spelling of 33938069 in words is "thirty-three million, nine hundred thirty-eight thousand, sixty-nine".

Divisors: 1 11 17 97 187 1067 1649 1871 18139 20581 31807 181487 349877 1996357 3085279 33938069