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8342489 = 31726317
BaseRepresentation
bin11111110100101111011001
3120200211202002
4133310233121
54113424424
6454450345
7130624061
oct37645731
916624662
108342489
114788921
1229639b5
1319612ac
1411723a1
15aebcae
hex7f4bd9

8342489 has 4 divisors (see below), whose sum is σ = 8369124. Its totient is φ = 8315856.

The previous prime is 8342483. The next prime is 8342507. The reversal of 8342489 is 9842438.

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 2544025 + 5798464 = 1595^2 + 2408^2 .

It is a cyclic number.

It is not a de Polignac number, because 8342489 - 216 = 8276953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8342483) 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, 12842 + ... + 13475.

It is an arithmetic number, because the mean of its divisors is an integer number (2092281).

Almost surely, 28342489 is an apocalyptic number.

It is an amenable number.

8342489 is a deficient number, since it is larger than the sum of its proper divisors (26635).

8342489 is a wasteful number, since it uses less digits than its factorization.

8342489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26634.

The product of its digits is 55296, while the sum is 38.

The square root of 8342489 is about 2888.3367185977. The cubic root of 8342489 is about 202.8142881626.

The spelling of 8342489 in words is "eight million, three hundred forty-two thousand, four hundred eighty-nine".

Divisors: 1 317 26317 8342489