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82633489 = 194349131
BaseRepresentation
bin1001110110011…
…10001100010001
312202111012211121
410323032030101
5132123232424
612111042241
72022241651
oct473161421
9182435747
1082633489
114270a844
1223810381
1314172c73
14ad90361
1573c3ee4
hex4ece311

82633489 has 4 divisors (see below), whose sum is σ = 86982640. Its totient is φ = 78284340.

The previous prime is 82633483. The next prime is 82633493. The reversal of 82633489 is 98433628.

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 a cyclic number.

It is not a de Polignac number, because 82633489 - 27 = 82633361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82633483) 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, 2174547 + ... + 2174584.

It is an arithmetic number, because the mean of its divisors is an integer number (21745660).

Almost surely, 282633489 is an apocalyptic number.

It is an amenable number.

82633489 is a deficient number, since it is larger than the sum of its proper divisors (4349151).

82633489 is a wasteful number, since it uses less digits than its factorization.

82633489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349150.

The product of its digits is 248832, while the sum is 43.

The square root of 82633489 is about 9090.2964198094. The cubic root of 82633489 is about 435.5640527197.

The spelling of 82633489 in words is "eighty-two million, six hundred thirty-three thousand, four hundred eighty-nine".

Divisors: 1 19 4349131 82633489