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8143090553 = 13626391581
BaseRepresentation
bin1111001010101110…
…11011001101111001
3210000111122212020102
413211113123031321
5113134112344203
63424010405145
7405536061533
oct74527331571
923014585212
108143090553
1134a9620504
1216b31307b5
139ca0930a0
145736b4853
15329d62888
hex1e55db379

8143090553 has 4 divisors (see below), whose sum is σ = 8769482148. Its totient is φ = 7516698960.

The previous prime is 8143090481. The next prime is 8143090567. The reversal of 8143090553 is 3550903418.

It is a happy number.

8143090553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3550903418 = 21775451709.

It can be written as a sum of positive squares in 2 ways, for example, as 4966302784 + 3176787769 = 70472^2 + 56363^2 .

It is a cyclic number.

It is not a de Polignac number, because 8143090553 - 28 = 8143090297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8143090853) 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, 313195778 + ... + 313195803.

It is an arithmetic number, because the mean of its divisors is an integer number (2192370537).

Almost surely, 28143090553 is an apocalyptic number.

It is an amenable number.

8143090553 is a deficient number, since it is larger than the sum of its proper divisors (626391595).

8143090553 is a wasteful number, since it uses less digits than its factorization.

8143090553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626391594.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 8143090553 is about 90239.0744245529. The cubic root of 8143090553 is about 2011.8538174546.

The spelling of 8143090553 in words is "eight billion, one hundred forty-three million, ninety thousand, five hundred fifty-three".

Divisors: 1 13 626391581 8143090553