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89758061 = 412189221
BaseRepresentation
bin1010101100110…
…01100101101101
320020220011220122
411112121211231
5140434224221
612523454325
72136634211
oct526314555
9206804818
1089758061
1146736618
12260873a5
1315798aa3
14bcc6941
157d2eeab
hex559996d

89758061 has 4 divisors (see below), whose sum is σ = 91947324. Its totient is φ = 87568800.

The previous prime is 89758001. The next prime is 89758073. The reversal of 89758061 is 16085798.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5669161 + 84088900 = 2381^2 + 9170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-89758061 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 (89758001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094570 + ... + 1094651.

It is an arithmetic number, because the mean of its divisors is an integer number (22986831).

Almost surely, 289758061 is an apocalyptic number.

It is an amenable number.

89758061 is a deficient number, since it is larger than the sum of its proper divisors (2189263).

89758061 is a wasteful number, since it uses less digits than its factorization.

89758061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189262.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 89758061 is about 9474.0730945038. The cubic root of 89758061 is about 447.7385488854.

The spelling of 89758061 in words is "eighty-nine million, seven hundred fifty-eight thousand, sixty-one".

Divisors: 1 41 2189221 89758061