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34380247 = 117939563
BaseRepresentation
bin1000001100100…
…1100111010111
32101200200211111
42003021213113
532300131442
63224515451
7565140646
oct203114727
971620744
1034380247
1118452430
12b61bb87
137179955
1447cd35d
153041b17
hex20c99d7

34380247 has 8 divisors (see below), whose sum is σ = 37981440. Its totient is φ = 30858360.

The previous prime is 34380217. The next prime is 34380251. The reversal of 34380247 is 74208343.

It is a happy number.

34380247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34380247 - 215 = 34347479 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 (34380217) 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 7 ways as a sum of consecutive naturals, for example, 18913 + ... + 20650.

It is an arithmetic number, because the mean of its divisors is an integer number (4747680).

Almost surely, 234380247 is an apocalyptic number.

34380247 is a deficient number, since it is larger than the sum of its proper divisors (3601193).

34380247 is a wasteful number, since it uses less digits than its factorization.

34380247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39653.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 34380247 is about 5863.4671483688. The cubic root of 34380247 is about 325.1644043944.

The spelling of 34380247 in words is "thirty-four million, three hundred eighty thousand, two hundred forty-seven".

Divisors: 1 11 79 869 39563 435193 3125477 34380247