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9028864897 = 134116939709
BaseRepresentation
bin10000110100010100…
…11000101110000001
3212022020101212012121
420122022120232001
5121442342134042
64051531524241
7436513041163
oct103212305601
925266355177
109028864897
113913616918
1218bb8b9681
13b0b748710
146191aa933
1537c9ce367
hex21a298b81

9028864897 has 8 divisors (see below), whose sum is σ = 9960549480. Its totient is φ = 8131059840.

The previous prime is 9028864879. The next prime is 9028864903. The reversal of 9028864897 is 7984688209.

It can be written as a sum of positive squares in 4 ways, for example, as 249924481 + 8778940416 = 15809^2 + 93696^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-9028864897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9028864807) 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, 8469322 + ... + 8470387.

It is an arithmetic number, because the mean of its divisors is an integer number (1245068685).

Almost surely, 29028864897 is an apocalyptic number.

It is an amenable number.

9028864897 is a deficient number, since it is larger than the sum of its proper divisors (931684583).

9028864897 is a wasteful number, since it uses less digits than its factorization.

9028864897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16939763.

The product of its (nonzero) digits is 13934592, while the sum is 61.

The square root of 9028864897 is about 95020.3393858389. The cubic root of 9028864897 is about 2082.3052056796.

The spelling of 9028864897 in words is "nine billion, twenty-eight million, eight hundred sixty-four thousand, eight hundred ninety-seven".

Divisors: 1 13 41 533 16939709 220216217 694528069 9028864897