Search a number
-
+
10308913 = 78713099
BaseRepresentation
bin100111010100…
…110100110001
3201101202011121
4213110310301
510114341123
61004542241
7153424066
oct47246461
921352147
1010308913
11590126a
123551981
13219c364
141524c6d
15d8975d
hex9d4d31

10308913 has 4 divisors (see below), whose sum is σ = 10322800. Its totient is φ = 10295028.

The previous prime is 10308847. The next prime is 10308929. The reversal of 10308913 is 31980301.

10308913 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10308913 - 29 = 10308401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10308983) 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, 5763 + ... + 7336.

It is an arithmetic number, because the mean of its divisors is an integer number (2580700).

Almost surely, 210308913 is an apocalyptic number.

It is an amenable number.

10308913 is a deficient number, since it is larger than the sum of its proper divisors (13887).

10308913 is an equidigital number, since it uses as much as digits as its factorization.

10308913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13886.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 10308913 is about 3210.7496009499. The cubic root of 10308913 is about 217.6394525608.

The spelling of 10308913 in words is "ten million, three hundred eight thousand, nine hundred thirteen".

Divisors: 1 787 13099 10308913