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84708023 = 194458317
BaseRepresentation
bin1010000110010…
…00101010110111
312220101121120012
411003020222313
5133141124043
612223330435
72046002111
oct503105267
9186347505
1084708023
11438a7434
1224450a1b
131471b2ba
14b3703b1
157683a18
hex50c8ab7

84708023 has 4 divisors (see below), whose sum is σ = 89166360. Its totient is φ = 80249688.

The previous prime is 84708017. The next prime is 84708047. The reversal of 84708023 is 32080748.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84708023 - 24 = 84708007 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 (84708083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2229140 + ... + 2229177.

It is an arithmetic number, because the mean of its divisors is an integer number (22291590).

Almost surely, 284708023 is an apocalyptic number.

84708023 is a deficient number, since it is larger than the sum of its proper divisors (4458337).

84708023 is a wasteful number, since it uses less digits than its factorization.

84708023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458336.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 84708023 is about 9203.6961596958. The cubic root of 84708023 is about 439.1789492240.

The spelling of 84708023 in words is "eighty-four million, seven hundred eight thousand, twenty-three".

Divisors: 1 19 4458317 84708023