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82454441 = 83211969
BaseRepresentation
bin1001110101000…
…10011110101001
312202011010020012
410322202132221
5132102020231
612103141305
72020564646
oct472423651
9182133205
1082454441
11425a8273
1223744835
131410c614
14ad44dcd
15738ae2b
hex4ea27a9

82454441 has 6 divisors (see below), whose sum is σ = 83466810. Its totient is φ = 81454208.

The previous prime is 82454431. The next prime is 82454459. The reversal of 82454441 is 14445428.

It can be written as a sum of positive squares in only one way, i.e., 53348416 + 29106025 = 7304^2 + 5395^2 .

It is not a de Polignac number, because 82454441 - 26 = 82454377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82454398 and 82454407.

It is not an unprimeable number, because it can be changed into a prime (82454431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 905 + ... + 12873.

It is an arithmetic number, because the mean of its divisors is an integer number (13911135).

Almost surely, 282454441 is an apocalyptic number.

It is an amenable number.

82454441 is a deficient number, since it is larger than the sum of its proper divisors (1012369).

82454441 is an equidigital number, since it uses as much as digits as its factorization.

82454441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12135 (or 12052 counting only the distinct ones).

The product of its digits is 20480, while the sum is 32.

The square root of 82454441 is about 9080.4427755479. The cubic root of 82454441 is about 435.2492357774.

Adding to 82454441 its reverse (14445428), we get a palindrome (96899869).

The spelling of 82454441 in words is "eighty-two million, four hundred fifty-four thousand, four hundred forty-one".

Divisors: 1 83 6889 11969 993427 82454441