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85382769 = 328460923
BaseRepresentation
bin1010001011011…
…01011001110001
312221122220010210
411011231121301
5133324222034
612250014333
72054512233
oct505553161
9187586123
1085382769
114421837a
12247173a9
13148c6464
14b4a8253
1577688e9
hex516d671

85382769 has 4 divisors (see below), whose sum is σ = 113843696. Its totient is φ = 56921844.

The previous prime is 85382767. The next prime is 85382779. The reversal of 85382769 is 96728358.

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 not a de Polignac number, because 85382769 - 21 = 85382767 is a prime.

It is a super-2 number, since 2×853827692 = 14580434484214722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85382761) 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, 14230459 + ... + 14230464.

It is an arithmetic number, because the mean of its divisors is an integer number (28460924).

Almost surely, 285382769 is an apocalyptic number.

It is an amenable number.

85382769 is a deficient number, since it is larger than the sum of its proper divisors (28460927).

85382769 is a wasteful number, since it uses less digits than its factorization.

85382769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28460926.

The product of its digits is 725760, while the sum is 48.

The square root of 85382769 is about 9240.2797035588. The cubic root of 85382769 is about 440.3419672815.

The spelling of 85382769 in words is "eighty-five million, three hundred eighty-two thousand, seven hundred sixty-nine".

Divisors: 1 3 28460923 85382769