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85823023 = 11133831567
BaseRepresentation
bin1010001110110…
…00111000101111
312222111021001111
411013120320233
5133432314043
612303252451
72061324616
oct507307057
9188437044
1085823023
1144499120
12248aa127
1314a1b970
14b58087d
15780409d
hex51d8e2f

85823023 has 16 divisors (see below), whose sum is σ = 101154816. Its totient is φ = 71785440.

The previous prime is 85823011. The next prime is 85823027. The reversal of 85823023 is 32032858.

It is a cyclic number.

It is not a de Polignac number, because 85823023 - 213 = 85814831 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 (85823027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53986 + ... + 55552.

It is an arithmetic number, because the mean of its divisors is an integer number (6322176).

Almost surely, 285823023 is an apocalyptic number.

85823023 is a deficient number, since it is larger than the sum of its proper divisors (15331793).

85823023 is a wasteful number, since it uses less digits than its factorization.

85823023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 85823023 is about 9264.0716210530. The cubic root of 85823023 is about 441.0975063899.

The spelling of 85823023 in words is "eighty-five million, eight hundred twenty-three thousand, twenty-three".

Divisors: 1 11 13 143 383 1567 4213 4979 17237 20371 54769 224081 600161 6601771 7802093 85823023