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10308481 = 97106273
BaseRepresentation
bin100111010100…
…101110000001
3201101201120121
4213110232001
510114332411
61004540241
7153422611
oct47245601
921351517
1010308481
115900a07
123551681
13219c0c1
141524a41
15d89571
hex9d4b81

10308481 has 4 divisors (see below), whose sum is σ = 10414852. Its totient is φ = 10202112.

The previous prime is 10308479. The next prime is 10308491. The reversal of 10308481 is 18480301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1404225 + 8904256 = 1185^2 + 2984^2 .

It is a cyclic number.

It is not a de Polignac number, because 10308481 - 21 = 10308479 is a prime.

It is a super-2 number, since 2×103084812 = 212529561054722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10308401) 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, 53040 + ... + 53233.

It is an arithmetic number, because the mean of its divisors is an integer number (2603713).

Almost surely, 210308481 is an apocalyptic number.

It is an amenable number.

10308481 is a deficient number, since it is larger than the sum of its proper divisors (106371).

10308481 is an equidigital number, since it uses as much as digits as its factorization.

10308481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106370.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 10308481 is about 3210.6823262353. The cubic root of 10308481 is about 217.6364124227.

Adding to 10308481 its reverse (18480301), we get a palindrome (28788782).

The spelling of 10308481 in words is "ten million, three hundred eight thousand, four hundred eighty-one".

Divisors: 1 97 106273 10308481