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34195909 = 113108719
BaseRepresentation
bin1000001001110…
…0100111000101
32101100022222011
42002130213011
532223232114
63220534221
7563442346
oct202344705
971308864
1034195909
1118336990
12b551371
137113a87
1447820cd
1530071c4
hex209c9c5

34195909 has 4 divisors (see below), whose sum is σ = 37304640. Its totient is φ = 31087180.

The previous prime is 34195853. The next prime is 34195951. The reversal of 34195909 is 90959143.

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: 90959143 = 118269013.

It is a cyclic number.

It is not a de Polignac number, because 34195909 - 27 = 34195781 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 (34195979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554349 + ... + 1554370.

It is an arithmetic number, because the mean of its divisors is an integer number (9326160).

Almost surely, 234195909 is an apocalyptic number.

It is an amenable number.

34195909 is a deficient number, since it is larger than the sum of its proper divisors (3108731).

34195909 is a wasteful number, since it uses less digits than its factorization.

34195909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108730.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 34195909 is about 5847.7268233049. The cubic root of 34195909 is about 324.5822134626.

The spelling of 34195909 in words is "thirty-four million, one hundred ninety-five thousand, nine hundred nine".

Divisors: 1 11 3108719 34195909