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2079620085 = 35401345739
BaseRepresentation
bin111101111110100…
…0111101111110101
312100221011122110010
41323331013233311
513224340320320
6542205250433
7102351323214
oct17375075765
95327148403
102079620085
11977989394
124a0563a19
13271b0383a
1415a2a307b
15c288dae0
hex7bf47bf5

2079620085 has 16 divisors (see below), whose sum is σ = 3335699520. Its totient is φ = 1106361600.

The previous prime is 2079620083. The next prime is 2079620117. The reversal of 2079620085 is 5800269702.

It is a happy number.

It is not a de Polignac number, because 2079620085 - 21 = 2079620083 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 (2079620083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166855 + ... + 178884.

It is an arithmetic number, because the mean of its divisors is an integer number (208481220).

Almost surely, 22079620085 is an apocalyptic number.

It is an amenable number.

2079620085 is a deficient number, since it is larger than the sum of its proper divisors (1256079435).

2079620085 is a wasteful number, since it uses less digits than its factorization.

2079620085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346148.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2079620085 is about 45602.8517200405. The cubic root of 2079620085 is about 1276.4231367987.

Adding to 2079620085 its reverse (5800269702), we get a palindrome (7879889787).

The spelling of 2079620085 in words is "two billion, seventy-nine million, six hundred twenty thousand, eighty-five".

Divisors: 1 3 5 15 401 1203 2005 6015 345739 1037217 1728695 5186085 138641339 415924017 693206695 2079620085