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10315145 = 52063029
BaseRepresentation
bin100111010110…
…010110001001
3201102001201102
4213112112021
510120041040
61005031145
7153451211
oct47262611
921361642
1010315145
115905a15
1235554b5
1321a2149
141527241
15d8b515
hex9d6589

10315145 has 4 divisors (see below), whose sum is σ = 12378180. Its totient is φ = 8252112.

The previous prime is 10315139. The next prime is 10315153. The reversal of 10315145 is 54151301.

10315145 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: 54151301 = 457118493.

It can be written as a sum of positive squares in 2 ways, for example, as 3924361 + 6390784 = 1981^2 + 2528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10315145 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031510 + ... + 1031519.

It is an arithmetic number, because the mean of its divisors is an integer number (3094545).

Almost surely, 210315145 is an apocalyptic number.

It is an amenable number.

10315145 is a deficient number, since it is larger than the sum of its proper divisors (2063035).

10315145 is an equidigital number, since it uses as much as digits as its factorization.

10315145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063034.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 10315145 is about 3211.7199442044. The cubic root of 10315145 is about 217.6832999204.

Adding to 10315145 its reverse (54151301), we get a palindrome (64466446).

The spelling of 10315145 in words is "ten million, three hundred fifteen thousand, one hundred forty-five".

Divisors: 1 5 2063029 10315145