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2660065513 = 72913103771
BaseRepresentation
bin1001111010001101…
…0110000011101001
320212101101022212221
42132203112003221
520421434044023
61115542234041
7122630120020
oct23643260351
96771338787
102660065513
1111455a0656
12622a25921
13335143981
141b33d98b7
151087e785d
hex9e8d60e9

2660065513 has 8 divisors (see below), whose sum is σ = 3144905280. Its totient is φ = 2201433360.

The previous prime is 2660065399. The next prime is 2660065523. The reversal of 2660065513 is 3155600662.

2660065513 is digitally balanced in base 2, 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-2660065513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660065523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6551683 + ... + 6552088.

It is an arithmetic number, because the mean of its divisors is an integer number (393113160).

Almost surely, 22660065513 is an apocalyptic number.

It is an amenable number.

2660065513 is a deficient number, since it is larger than the sum of its proper divisors (484839767).

2660065513 is a wasteful number, since it uses less digits than its factorization.

2660065513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13103807.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 2660065513 is about 51575.8229502933. The cubic root of 2660065513 is about 1385.5773571530.

The spelling of 2660065513 in words is "two billion, six hundred sixty million, sixty-five thousand, five hundred thirteen".

Divisors: 1 7 29 203 13103771 91726397 380009359 2660065513