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898772005 = 51311372171
BaseRepresentation
bin110101100100100…
…010110000100101
32022122012100102001
4311210202300211
53320041201010
6225103445301
731162302355
oct6544426045
92278170361
10898772005
1142137378a
12210bb6831
13114286771
148751ab65
1553d87c3a
hex35922c25

898772005 has 8 divisors (see below), whose sum is σ = 1086760224. Its totient is φ = 713528400.

The previous prime is 898771999. The next prime is 898772009. The reversal of 898772005 is 500277898.

898772005 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-898772005 is a prime.

It is a super-2 number, since 2×8987720052 = 1615582233943440050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (898772009) 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 7 ways as a sum of consecutive naturals, for example, 685431 + ... + 686740.

It is an arithmetic number, because the mean of its divisors is an integer number (135845028).

Almost surely, 2898772005 is an apocalyptic number.

It is an amenable number.

898772005 is a deficient number, since it is larger than the sum of its proper divisors (187988219).

898772005 is a wasteful number, since it uses less digits than its factorization.

898772005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372307.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 898772005 is about 29979.5264305492. The cubic root of 898772005 is about 965.0500676502.

The spelling of 898772005 in words is "eight hundred ninety-eight million, seven hundred seventy-two thousand, five".

Divisors: 1 5 131 655 1372171 6860855 179754401 898772005