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340086479 = 1720005087
BaseRepresentation
bin10100010001010…
…100111011001111
3212200221011221112
4110101110323033
51144030231404
653425122235
711266454525
oct2421247317
9780834845
10340086479
11164a74007
1295a8937b
13555c4b05
143324a315
151eccb56e
hex14454ecf

340086479 has 4 divisors (see below), whose sum is σ = 360091584. Its totient is φ = 320081376.

The previous prime is 340086469. The next prime is 340086497. The reversal of 340086479 is 974680043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974680043 = 1489654587.

It is a cyclic number.

It is not a de Polignac number, because 340086479 - 216 = 340020943 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 (340086449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10002527 + ... + 10002560.

It is an arithmetic number, because the mean of its divisors is an integer number (90022896).

Almost surely, 2340086479 is an apocalyptic number.

340086479 is a deficient number, since it is larger than the sum of its proper divisors (20005105).

340086479 is a wasteful number, since it uses less digits than its factorization.

340086479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20005104.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 340086479 is about 18441.4337566253. The cubic root of 340086479 is about 698.0123744738.

The spelling of 340086479 in words is "three hundred forty million, eighty-six thousand, four hundred seventy-nine".

Divisors: 1 17 20005087 340086479