Search a number
-
+
10271840945 = 59973205993
BaseRepresentation
bin10011001000011111…
…11101101010110001
3222111212021120210112
421210033331222301
5132014042402240
64415133111105
7512355131102
oct114417755261
928455246715
1010271840945
1143a1206153
121ba8028495
13c791091c2
146d62c63a9
15401ba8665
hex2643fdab1

10271840945 has 8 divisors (see below), whose sum is σ = 12327504936. Its totient is φ = 8216608896.

The previous prime is 10271840939. The next prime is 10271840959. The reversal of 10271840945 is 54904817201.

It can be written as a sum of positive squares in 4 ways, for example, as 1847538289 + 8424302656 = 42983^2 + 91784^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10271840945 - 26 = 10271840881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53132 + ... + 152861.

It is an arithmetic number, because the mean of its divisors is an integer number (1540938117).

Almost surely, 210271840945 is an apocalyptic number.

It is an amenable number.

10271840945 is a deficient number, since it is larger than the sum of its proper divisors (2055663991).

10271840945 is an equidigital number, since it uses as much as digits as its factorization.

10271840945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215971.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 10271840945 in words is "ten billion, two hundred seventy-one million, eight hundred forty thousand, nine hundred forty-five".

Divisors: 1 5 9973 49865 205993 1029965 2054368189 10271840945