Search a number
-
+
10143289 = 13780253
BaseRepresentation
bin100110101100…
…011000111001
3201002022222101
4212230120321
510044041124
61001223401
7152134162
oct46543071
921068871
1010143289
1157a8892
123491b61
132141b60
1414c0769
15d55644
hex9ac639

10143289 has 4 divisors (see below), whose sum is σ = 10923556. Its totient is φ = 9363024.

The previous prime is 10143281. The next prime is 10143319. The reversal of 10143289 is 98234101.

It is a happy number.

10143289 is digitally balanced in base 2, 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: 98234101 = 714033443.

It can be written as a sum of positive squares in 2 ways, for example, as 3968064 + 6175225 = 1992^2 + 2485^2 .

It is a cyclic number.

It is not a de Polignac number, because 10143289 - 23 = 10143281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10143281) 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, 390114 + ... + 390139.

It is an arithmetic number, because the mean of its divisors is an integer number (2730889).

Almost surely, 210143289 is an apocalyptic number.

It is an amenable number.

10143289 is a deficient number, since it is larger than the sum of its proper divisors (780267).

10143289 is an equidigital number, since it uses as much as digits as its factorization.

10143289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780266.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 10143289 is about 3184.8530578349. The cubic root of 10143289 is about 216.4676154787.

The spelling of 10143289 in words is "ten million, one hundred forty-three thousand, two hundred eighty-nine".

Divisors: 1 13 780253 10143289