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8340069 = 319146317
BaseRepresentation
bin11111110100001001100101
3120200201102110
4133310021211
54113340234
6454431233
7130614033
oct37641145
916621373
108340069
114787021
122962519
13196016a
141171553
15aeb1e9
hex7f4265

8340069 has 8 divisors (see below), whose sum is σ = 11705440. Its totient is φ = 5267376.

The previous prime is 8340061. The next prime is 8340071. The reversal of 8340069 is 9600438.

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

It is not a de Polignac number, because 8340069 - 23 = 8340061 is a prime.

It is a super-2 number, since 2×83400692 = 139113501849522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8340061) 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, 73102 + ... + 73215.

It is an arithmetic number, because the mean of its divisors is an integer number (1463180).

Almost surely, 28340069 is an apocalyptic number.

It is an amenable number.

8340069 is a deficient number, since it is larger than the sum of its proper divisors (3365371).

8340069 is a wasteful number, since it uses less digits than its factorization.

8340069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146339.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 8340069 is about 2887.9177619870. The cubic root of 8340069 is about 202.7946753890.

The spelling of 8340069 in words is "eight million, three hundred forty thousand, sixty-nine".

Divisors: 1 3 19 57 146317 438951 2780023 8340069