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85472230 = 258547223
BaseRepresentation
bin1010001100000…
…11001111100110
312221211102212011
411012003033212
5133340102410
612251544434
72055334114
oct506031746
9187742764
1085472230
1144279608
122475b11a
13149280ac
14b4ccab4
15778518a
hex51833e6

85472230 has 8 divisors (see below), whose sum is σ = 153850032. Its totient is φ = 34188888.

The previous prime is 85472227. The next prime is 85472237. The reversal of 85472230 is 3227458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 85472192 and 85472201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85472237) 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, 4273602 + ... + 4273621.

It is an arithmetic number, because the mean of its divisors is an integer number (19231254).

Almost surely, 285472230 is an apocalyptic number.

85472230 is a deficient number, since it is larger than the sum of its proper divisors (68377802).

85472230 is a wasteful number, since it uses less digits than its factorization.

85472230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547230.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 85472230 is about 9245.1192528815. The cubic root of 85472230 is about 440.4957051018.

Adding to 85472230 its reverse (3227458), we get a palindrome (88699688).

The spelling of 85472230 in words is "eighty-five million, four hundred seventy-two thousand, two hundred thirty".

Divisors: 1 2 5 10 8547223 17094446 42736115 85472230