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82189353 = 3211129841
BaseRepresentation
bin1001110011000…
…01110000101001
312201122122121010
410321201300221
5132020024403
612053334133
72015412051
oct471416051
9181578533
1082189353
1142437094
1223637349
1314048a6c
14acb6561
157337603
hex4e61c29

82189353 has 8 divisors (see below), whose sum is σ = 110106016. Its totient is φ = 54532800.

The previous prime is 82189319. The next prime is 82189357. The reversal of 82189353 is 35398128.

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

It is not a de Polignac number, because 82189353 - 213 = 82181161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82189357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64288 + ... + 65553.

It is an arithmetic number, because the mean of its divisors is an integer number (13763252).

Almost surely, 282189353 is an apocalyptic number.

It is an amenable number.

82189353 is a deficient number, since it is larger than the sum of its proper divisors (27916663).

82189353 is a wasteful number, since it uses less digits than its factorization.

82189353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130055.

The product of its digits is 51840, while the sum is 39.

The square root of 82189353 is about 9065.8343796917. The cubic root of 82189353 is about 434.7822982535.

It can be divided in two parts, 8218 and 9353, that added together give a palindrome (17571).

The spelling of 82189353 in words is "eighty-two million, one hundred eighty-nine thousand, three hundred fifty-three".

Divisors: 1 3 211 633 129841 389523 27396451 82189353