Search a number
-
+
8555223043 = 19450274897
BaseRepresentation
bin1111111011110111…
…00101100000000011
3211002020011100201201
413331323211200003
5120010114114133
63532532042031
7422002124143
oct77573454003
924066140651
108555223043
1136a0222774
1217a9163317
13a64591a73
145b2316923
15351120d7d
hex1fdee5803

8555223043 has 4 divisors (see below), whose sum is σ = 9005497960. Its totient is φ = 8104948128.

The previous prime is 8555223041. The next prime is 8555223143. The reversal of 8555223043 is 3403225558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3403225558 = 21701612779.

It is a cyclic number.

It is not a de Polignac number, because 8555223043 - 21 = 8555223041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8555222993 and 8555223011.

It is not an unprimeable number, because it can be changed into a prime (8555223041) 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, 225137430 + ... + 225137467.

It is an arithmetic number, because the mean of its divisors is an integer number (2251374490).

Almost surely, 28555223043 is an apocalyptic number.

8555223043 is a deficient number, since it is larger than the sum of its proper divisors (450274917).

8555223043 is a wasteful number, since it uses less digits than its factorization.

8555223043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450274916.

The product of its (nonzero) digits is 144000, while the sum is 37.

The square root of 8555223043 is about 92494.4487145039. The cubic root of 8555223043 is about 2045.2376497429.

The spelling of 8555223043 in words is "eight billion, five hundred fifty-five million, two hundred twenty-three thousand, forty-three".

Divisors: 1 19 450274897 8555223043