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676528893 = 3275169877
BaseRepresentation
bin101000010100110…
…000001011111101
31202011000020011200
4220110300023331
52341142411033
6151044210113
722523254305
oct5024601375
91664006150
10676528893
11317979197
1216a699939
13aa212071
1465bc8605
153e5d8013
hex285302fd

676528893 has 6 divisors (see below), whose sum is σ = 977208414. Its totient is φ = 451019256.

The previous prime is 676528861. The next prime is 676528913. The reversal of 676528893 is 398825676.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 570397689 + 106131204 = 23883^2 + 10302^2 .

It is not a de Polignac number, because 676528893 - 25 = 676528861 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676528843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37584930 + ... + 37584947.

It is an arithmetic number, because the mean of its divisors is an integer number (162868069).

Almost surely, 2676528893 is an apocalyptic number.

It is an amenable number.

676528893 is a deficient number, since it is larger than the sum of its proper divisors (300679521).

676528893 is a wasteful number, since it uses less digits than its factorization.

676528893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75169883 (or 75169880 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 676528893 is about 26010.1690305926. The cubic root of 676528893 is about 877.8671198665.

The spelling of 676528893 in words is "six hundred seventy-six million, five hundred twenty-eight thousand, eight hundred ninety-three".

Divisors: 1 3 9 75169877 225509631 676528893