Search a number
-
+
10257613 = 17603389
BaseRepresentation
bin100111001000…
…010011001101
3201022010210121
4213020103031
510111220423
61003504541
7153121402
oct47102315
921263717
1010257613
115876773
123528151
132181bc2
1415102a9
15d7945d
hex9c84cd

10257613 has 4 divisors (see below), whose sum is σ = 10861020. Its totient is φ = 9654208.

The previous prime is 10257589. The next prime is 10257623. The reversal of 10257613 is 31675201.

10257613 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 an emirpimes, since its reverse is a distinct semiprime: 31675201 = 34791283.

It can be written as a sum of positive squares in 2 ways, for example, as 5579044 + 4678569 = 2362^2 + 2163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10257613 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 (10257623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301678 + ... + 301711.

It is an arithmetic number, because the mean of its divisors is an integer number (2715255).

Almost surely, 210257613 is an apocalyptic number.

It is an amenable number.

10257613 is a deficient number, since it is larger than the sum of its proper divisors (603407).

10257613 is an equidigital number, since it uses as much as digits as its factorization.

10257613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603406.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 10257613 is about 3202.7508488798. The cubic root of 10257613 is about 217.2778407151.

The spelling of 10257613 in words is "ten million, two hundred fifty-seven thousand, six hundred thirteen".

Divisors: 1 17 603389 10257613