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2086929305 = 5417385861
BaseRepresentation
bin111110001100100…
…0000001110011001
312101102220222210222
41330121000032121
513233223214210
6543030045425
7102500414666
oct17431001631
95342828728
102086929305
1198102096a
124a2aa9875
13273492716
1415b246a6d
15c3334655
hex7c640399

2086929305 has 4 divisors (see below), whose sum is σ = 2504315172. Its totient is φ = 1669543440.

The previous prime is 2086929289. The next prime is 2086929307. The reversal of 2086929305 is 5039296802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5039296802 = 22519648401.

It can be written as a sum of positive squares in 2 ways, for example, as 1667007241 + 419922064 = 40829^2 + 20492^2 .

It is not a de Polignac number, because 2086929305 - 24 = 2086929289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086929307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208692926 + ... + 208692935.

It is an arithmetic number, because the mean of its divisors is an integer number (626078793).

Almost surely, 22086929305 is an apocalyptic number.

It is an amenable number.

2086929305 is a deficient number, since it is larger than the sum of its proper divisors (417385867).

2086929305 is an equidigital number, since it uses as much as digits as its factorization.

2086929305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417385866.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 2086929305 is about 45682.9213711207. The cubic root of 2086929305 is about 1277.9167988053.

The spelling of 2086929305 in words is "two billion, eighty-six million, nine hundred twenty-nine thousand, three hundred five".

Divisors: 1 5 417385861 2086929305