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34051809 = 3116191667
BaseRepresentation
bin1000000111100…
…1011011100001
32101002000022010
42001321123201
532204124214
63213503133
7562302261
oct201713341
971060263
1034051809
11182486a0
12b4a1aa9
1370932cc
1447457a1
152ec9659
hex20796e1

34051809 has 16 divisors (see below), whose sum is σ = 49639680. Its totient is φ = 20591760.

The previous prime is 34051807. The next prime is 34051837. The reversal of 34051809 is 90815043.

It is not a de Polignac number, because 34051809 - 21 = 34051807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34051807) 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, 19594 + ... + 21260.

It is an arithmetic number, because the mean of its divisors is an integer number (3102480).

Almost surely, 234051809 is an apocalyptic number.

It is an amenable number.

34051809 is a deficient number, since it is larger than the sum of its proper divisors (15587871).

34051809 is a wasteful number, since it uses less digits than its factorization.

34051809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 34051809 is about 5835.3927888361. The cubic root of 34051809 is about 324.1256466652.

The spelling of 34051809 in words is "thirty-four million, fifty-one thousand, eight hundred nine".

Divisors: 1 3 11 33 619 1667 1857 5001 6809 18337 20427 55011 1031873 3095619 11350603 34051809