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89435213 = 712776459
BaseRepresentation
bin1010101010010…
…10110001001101
320020021210001022
411111022301031
5140343411323
612512523525
72134121030
oct525126115
9206253038
1089435213
1146535aaa
1225b505a5
13156b4b5a
14bc41017
157cb94c8
hex554ac4d

89435213 has 4 divisors (see below), whose sum is σ = 102211680. Its totient is φ = 76658748.

The previous prime is 89435183. The next prime is 89435231. The reversal of 89435213 is 31253498.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31253498 = 215626749.

It is a cyclic number.

It is not a de Polignac number, because 89435213 - 214 = 89418829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89435233) 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, 6388223 + ... + 6388236.

It is an arithmetic number, because the mean of its divisors is an integer number (25552920).

Almost surely, 289435213 is an apocalyptic number.

It is an amenable number.

89435213 is a deficient number, since it is larger than the sum of its proper divisors (12776467).

89435213 is a wasteful number, since it uses less digits than its factorization.

89435213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12776466.

The product of its digits is 25920, while the sum is 35.

The square root of 89435213 is about 9457.0192449841. The cubic root of 89435213 is about 447.2010849833.

The spelling of 89435213 in words is "eighty-nine million, four hundred thirty-five thousand, two hundred thirteen".

Divisors: 1 7 12776459 89435213