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84968069 = 191444859
BaseRepresentation
bin1010001000010…
…00001010000101
312220212211021112
411010020022011
5133222434234
612233054405
72051134214
oct504101205
9186784245
1084968069
1143a6484a
1224557405
13147ac784
14b3db07b
1576d5ace
hex5108285

84968069 has 4 divisors (see below), whose sum is σ = 85413120. Its totient is φ = 84523020.

The previous prime is 84968053. The next prime is 84968071. The reversal of 84968069 is 96086948.

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.

It is a cyclic number.

It is not a de Polignac number, because 84968069 - 24 = 84968053 is a prime.

It is a super-2 number, since 2×849680692 = 14439145499177522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84968089) 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, 222239 + ... + 222620.

It is an arithmetic number, because the mean of its divisors is an integer number (21353280).

Almost surely, 284968069 is an apocalyptic number.

It is an amenable number.

84968069 is a deficient number, since it is larger than the sum of its proper divisors (445051).

84968069 is a wasteful number, since it uses less digits than its factorization.

84968069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445050.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 84968069 is about 9217.8125930179. The cubic root of 84968069 is about 439.6279033914.

The spelling of 84968069 in words is "eighty-four million, nine hundred sixty-eight thousand, sixty-nine".

Divisors: 1 191 444859 84968069