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83854073 = 619135467
BaseRepresentation
bin1001111111110…
…00001011111001
312211210020011102
410333320023321
5132431312243
612153141145
72035514342
oct477701371
9184706142
1083854073
1143373896
12240ba7b5
13144ac6c4
14b1cb0c9
1575659b8
hex4ff82f9

83854073 has 4 divisors (see below), whose sum is σ = 83990160. Its totient is φ = 83717988.

The previous prime is 83854037. The next prime is 83854079. The reversal of 83854073 is 37045838.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37045838 = 218522919.

It is a cyclic number.

It is not a de Polignac number, because 83854073 - 212 = 83849977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83854079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67115 + ... + 68352.

It is an arithmetic number, because the mean of its divisors is an integer number (20997540).

Almost surely, 283854073 is an apocalyptic number.

It is an amenable number.

83854073 is a deficient number, since it is larger than the sum of its proper divisors (136087).

83854073 is a wasteful number, since it uses less digits than its factorization.

83854073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136086.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 83854073 is about 9157.1869588864. The cubic root of 83854073 is about 437.6981598108.

The spelling of 83854073 in words is "eighty-three million, eight hundred fifty-four thousand, seventy-three".

Divisors: 1 619 135467 83854073