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83448469 = 136419113
BaseRepresentation
bin1001111100101…
…01001010010101
312211000121210001
410332111022111
5132330322334
612140331301
72032204666
oct476251225
9184017701
1083448469
1143117085
1223b43b31
1314399bc0
14b12336d
1574d5714
hex4f95295

83448469 has 4 divisors (see below), whose sum is σ = 89867596. Its totient is φ = 77029344.

The previous prime is 83448403. The next prime is 83448499. The reversal of 83448469 is 96484438.

It is a happy number.

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 36457444 + 46991025 = 6038^2 + 6855^2 .

It is a cyclic number.

It is not a de Polignac number, because 83448469 - 215 = 83415701 is a prime.

It is a super-2 number, since 2×834484692 = 13927293956887922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83448499) 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, 3209544 + ... + 3209569.

It is an arithmetic number, because the mean of its divisors is an integer number (22466899).

Almost surely, 283448469 is an apocalyptic number.

It is an amenable number.

83448469 is a deficient number, since it is larger than the sum of its proper divisors (6419127).

83448469 is a wasteful number, since it uses less digits than its factorization.

83448469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419126.

The product of its digits is 663552, while the sum is 46.

The square root of 83448469 is about 9135.0133552174. The cubic root of 83448469 is about 436.9913003346.

The spelling of 83448469 in words is "eighty-three million, four hundred forty-eight thousand, four hundred sixty-nine".

Divisors: 1 13 6419113 83448469