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6528248081 = 171512543143
BaseRepresentation
bin1100001010001110…
…10010100100010001
3121211222001100210222
412011013102210101
5101332212414311
62555443002425
7320530123145
oct60507224421
917758040728
106528248081
112850031453
121322369415
138006615b4
1445d039225
152831d0adb
hex1851d2911

6528248081 has 8 divisors (see below), whose sum is σ = 6958041984. Its totient is φ = 6103540800.

The previous prime is 6528248071. The next prime is 6528248101. The reversal of 6528248081 is 1808428256.

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-6528248081 is a prime.

It is a super-2 number, since 2×65282480812 = 85236046014160365122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6528248011) 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, 1269005 + ... + 1274138.

It is an arithmetic number, because the mean of its divisors is an integer number (869755248).

Almost surely, 26528248081 is an apocalyptic number.

It is an amenable number.

6528248081 is a deficient number, since it is larger than the sum of its proper divisors (429793903).

6528248081 is a wasteful number, since it uses less digits than its factorization.

6528248081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543311.

The product of its (nonzero) digits is 245760, while the sum is 44.

The square root of 6528248081 is about 80797.5747222650. The cubic root of 6528248081 is about 1868.9551657968.

The spelling of 6528248081 in words is "six billion, five hundred twenty-eight million, two hundred forty-eight thousand, eighty-one".

Divisors: 1 17 151 2567 2543143 43233431 384014593 6528248081