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82965473 = 509162997
BaseRepresentation
bin1001111000111…
…11001111100001
312210010002020022
410330133033201
5132214343343
612122123225
72025123563
oct474371741
9183102208
1082965473
1142917208
1223950515
131425b0c6
14b039333
15743c568
hex4f1f3e1

82965473 has 4 divisors (see below), whose sum is σ = 83128980. Its totient is φ = 82801968.

The previous prime is 82965469. The next prime is 82965479. The reversal of 82965473 is 37456928.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36820624 + 46144849 = 6068^2 + 6793^2 .

It is a cyclic number.

It is not a de Polignac number, because 82965473 - 22 = 82965469 is a prime.

It is a super-2 number, since 2×829654732 = 13766539420227458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82965479) 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, 80990 + ... + 82007.

It is an arithmetic number, because the mean of its divisors is an integer number (20782245).

Almost surely, 282965473 is an apocalyptic number.

It is an amenable number.

82965473 is a deficient number, since it is larger than the sum of its proper divisors (163507).

82965473 is a wasteful number, since it uses less digits than its factorization.

82965473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163506.

The product of its digits is 362880, while the sum is 44.

The square root of 82965473 is about 9108.5384667355. The cubic root of 82965473 is about 436.1465731283.

It can be divided in two parts, 82965 and 473, that added together give a palindrome (83438).

The spelling of 82965473 in words is "eighty-two million, nine hundred sixty-five thousand, four hundred seventy-three".

Divisors: 1 509 162997 82965473