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34540909 = 132656993
BaseRepresentation
bin1000001111000…
…0110101101101
32101222212012221
42003300311231
532320302114
63232155341
7566410234
oct203606555
971885187
1034540909
1118552107
12b698b51
137204b10
144831b1b
153074524
hex20f0d6d

34540909 has 4 divisors (see below), whose sum is σ = 37197916. Its totient is φ = 31883904.

The previous prime is 34540907. The next prime is 34540921. The reversal of 34540909 is 90904543.

34540909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1512900 + 33028009 = 1230^2 + 5747^2 .

It is not a de Polignac number, because 34540909 - 21 = 34540907 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 (34540903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328484 + ... + 1328509.

It is an arithmetic number, because the mean of its divisors is an integer number (9299479).

Almost surely, 234540909 is an apocalyptic number.

It is an amenable number.

34540909 is a deficient number, since it is larger than the sum of its proper divisors (2657007).

34540909 is a wasteful number, since it uses less digits than its factorization.

34540909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657006.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 34540909 is about 5877.1514358573. The cubic root of 34540909 is about 325.6701249964.

The spelling of 34540909 in words is "thirty-four million, five hundred forty thousand, nine hundred nine".

Divisors: 1 13 2656993 34540909