Search a number
-
+
2868796209 = 3956265403
BaseRepresentation
bin1010101011111110…
…0101101100110001
321101221010221120110
42222333211230301
521333402434314
61152400131533
7131043236226
oct25277455461
97357127513
102868796209
1112423a7064
12680906ba9
13369466b66
141d301194d
1511bcc8a59
hexaafe5b31

2868796209 has 4 divisors (see below), whose sum is σ = 3825061616. Its totient is φ = 1912530804.

The previous prime is 2868796207. The next prime is 2868796253. The reversal of 2868796209 is 9026978682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2868796209 - 21 = 2868796207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2868796207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478132699 + ... + 478132704.

It is an arithmetic number, because the mean of its divisors is an integer number (956265404).

Almost surely, 22868796209 is an apocalyptic number.

It is an amenable number.

2868796209 is a deficient number, since it is larger than the sum of its proper divisors (956265407).

2868796209 is an equidigital number, since it uses as much as digits as its factorization.

2868796209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956265406.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The square root of 2868796209 is about 53561.1445826170. The cubic root of 2868796209 is about 1420.9099849001.

The spelling of 2868796209 in words is "two billion, eight hundred sixty-eight million, seven hundred ninety-six thousand, two hundred nine".

Divisors: 1 3 956265403 2868796209