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89452645 = 531756437
BaseRepresentation
bin1010101010011…
…11000001100101
320020022122221221
411111033001211
5140344441040
612513140341
72134222612
oct525170145
9206278857
1089452645
1146548107
1225b5a6b1
13156bca79
14bc47509
157cbe74a
hex554f065

89452645 has 8 divisors (see below), whose sum is σ = 107683704. Its totient is φ = 71335104.

The previous prime is 89452637. The next prime is 89452651. The reversal of 89452645 is 54625498.

It can be written as a sum of positive squares in 4 ways, for example, as 6260004 + 83192641 = 2502^2 + 9121^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 89452645 - 23 = 89452637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26634 + ... + 29803.

It is an arithmetic number, because the mean of its divisors is an integer number (13460463).

Almost surely, 289452645 is an apocalyptic number.

It is an amenable number.

89452645 is a deficient number, since it is larger than the sum of its proper divisors (18231059).

89452645 is a wasteful number, since it uses less digits than its factorization.

89452645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56759.

The product of its digits is 345600, while the sum is 43.

The square root of 89452645 is about 9457.9408435452. The cubic root of 89452645 is about 447.2301380547.

The spelling of 89452645 in words is "eighty-nine million, four hundred fifty-two thousand, six hundred forty-five".

Divisors: 1 5 317 1585 56437 282185 17890529 89452645