Search a number
-
+
26630807873 = 191401621467
BaseRepresentation
bin11000110011010100…
…011110000101000001
32112201221120012122112
4120303110132011001
5414014441322443
620122314345105
71631636063165
oct306324360501
975657505575
1026630807873
111032644012a
1251b272b195
132685367ba7
141408bbaca5
15a5ce59b18
hex63351e141

26630807873 has 4 divisors (see below), whose sum is σ = 28032429360. Its totient is φ = 25229186388.

The previous prime is 26630807843. The next prime is 26630807891. The reversal of 26630807873 is 37870803662.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37870803662 = 218935401831.

It is a cyclic number.

It is not a de Polignac number, because 26630807873 - 210 = 26630806849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26630807813) 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, 700810715 + ... + 700810752.

It is an arithmetic number, because the mean of its divisors is an integer number (7008107340).

Almost surely, 226630807873 is an apocalyptic number.

It is an amenable number.

26630807873 is a deficient number, since it is larger than the sum of its proper divisors (1401621487).

26630807873 is a wasteful number, since it uses less digits than its factorization.

26630807873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401621486.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 26630807873 in words is "twenty-six billion, six hundred thirty million, eight hundred seven thousand, eight hundred seventy-three".

Divisors: 1 19 1401621467 26630807873