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84527545 = 531619881
BaseRepresentation
bin1010000100111…
…00100110111001
312220001102222211
411002130212321
5133114340140
612215415121
72044320664
oct502344671
9186042884
1084527545
1143793883
12243844a1
13146870cb
14b3246db
15764a2ea
hex509c9b9

84527545 has 16 divisors (see below), whose sum is σ = 104993280. Its totient is φ = 65260800.

The previous prime is 84527537. The next prime is 84527549. The reversal of 84527545 is 54572548.

It is not a de Polignac number, because 84527545 - 23 = 84527537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84527498 and 84527507.

It is not an unprimeable number, because it can be changed into a prime (84527549) 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 15 ways as a sum of consecutive naturals, for example, 95505 + ... + 96385.

It is an arithmetic number, because the mean of its divisors is an integer number (6562080).

Almost surely, 284527545 is an apocalyptic number.

It is an amenable number.

84527545 is a deficient number, since it is larger than the sum of its proper divisors (20465735).

84527545 is a wasteful number, since it uses less digits than its factorization.

84527545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536.

The product of its digits is 224000, while the sum is 40.

The square root of 84527545 is about 9193.8862838301. The cubic root of 84527545 is about 438.8668241383.

The spelling of 84527545 in words is "eighty-four million, five hundred twenty-seven thousand, five hundred forty-five".

Divisors: 1 5 31 155 619 881 3095 4405 19189 27311 95945 136555 545339 2726695 16905509 84527545