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10320481 = 79130639
BaseRepresentation
bin100111010111…
…101001100001
3201102100001001
4213113221201
510120223411
61005112001
7153502603
oct47275141
921370031
1010320481
115909a26
123558601
1321a46c2
141529173
15d8cdc1
hex9d7a61

10320481 has 4 divisors (see below), whose sum is σ = 10451200. Its totient is φ = 10189764.

The previous prime is 10320467. The next prime is 10320511. The reversal of 10320481 is 18402301.

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: 18402301 = 101182201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10320481 is a prime.

It is a super-2 number, since 2×103204812 = 213024656142722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10320461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65241 + ... + 65398.

It is an arithmetic number, because the mean of its divisors is an integer number (2612800).

Almost surely, 210320481 is an apocalyptic number.

It is an amenable number.

10320481 is a deficient number, since it is larger than the sum of its proper divisors (130719).

10320481 is an equidigital number, since it uses as much as digits as its factorization.

10320481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130718.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 10320481 is about 3212.5505443495. The cubic root of 10320481 is about 217.7208291345.

Adding to 10320481 its reverse (18402301), we get a palindrome (28722782).

It can be divided in two parts, 103204 and 81, that added together give a triangular number (103285 = T454).

The spelling of 10320481 in words is "ten million, three hundred twenty thousand, four hundred eighty-one".

Divisors: 1 79 130639 10320481