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34340815 = 56868163
BaseRepresentation
bin1000001011111…
…1111111001111
32101121200202001
42002333333033
532242401230
63224013131
7564614665
oct202777717
971550661
1034340815
1118425843
12b6011a7
137164a12
1447bcc35
1530350ca
hex20bffcf

34340815 has 4 divisors (see below), whose sum is σ = 41208984. Its totient is φ = 27472648.

The previous prime is 34340749. The next prime is 34340827. The reversal of 34340815 is 51804343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51804343 = 131395453.

It is a cyclic number.

It is not a de Polignac number, because 34340815 - 219 = 33816527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3434077 + ... + 3434086.

It is an arithmetic number, because the mean of its divisors is an integer number (10302246).

Almost surely, 234340815 is an apocalyptic number.

34340815 is a deficient number, since it is larger than the sum of its proper divisors (6868169).

34340815 is an equidigital number, since it uses as much as digits as its factorization.

34340815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868168.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 34340815 is about 5860.1036680250. The cubic root of 34340815 is about 325.0400424036.

The spelling of 34340815 in words is "thirty-four million, three hundred forty thousand, eight hundred fifteen".

Divisors: 1 5 6868163 34340815