Search a number
-
+
10309093 = 56318311
BaseRepresentation
bin100111010100…
…110111100101
3201101202102021
4213110313211
510114342333
61004543141
7153424444
oct47246745
921352367
1010309093
115901413
123551ab1
13219c472
141524d5b
15d8982d
hex9d4de5

10309093 has 4 divisors (see below), whose sum is σ = 10327968. Its totient is φ = 10290220.

The previous prime is 10309073. The next prime is 10309097. The reversal of 10309093 is 39090301.

10309093 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39090301 = 75152051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10309093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10309097) 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, 8593 + ... + 9718.

It is an arithmetic number, because the mean of its divisors is an integer number (2581992).

Almost surely, 210309093 is an apocalyptic number.

It is an amenable number.

10309093 is a deficient number, since it is larger than the sum of its proper divisors (18875).

10309093 is an equidigital number, since it uses as much as digits as its factorization.

10309093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18874.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 10309093 is about 3210.7776316650. Note that the first 3 decimals coincide. The cubic root of 10309093 is about 217.6407192599.

Adding to 10309093 its reverse (39090301), we get a palindrome (49399394).

The spelling of 10309093 in words is "ten million, three hundred nine thousand, ninety-three".

Divisors: 1 563 18311 10309093