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10384865 = 52076973
BaseRepresentation
bin100111100111…
…010111100001
3201112121100122
4213213113201
510124303430
61010330025
7154161401
oct47472741
921477318
1010384865
115953337
123589915
1321c7aba
141544801
15da1ee5
hex9e75e1

10384865 has 4 divisors (see below), whose sum is σ = 12461844. Its totient is φ = 8307888.

The previous prime is 10384859. The next prime is 10384867. The reversal of 10384865 is 56848301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56848301 = 239237859.

It can be written as a sum of positive squares in 2 ways, for example, as 5326864 + 5058001 = 2308^2 + 2249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10384865 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10384867) 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, 1038482 + ... + 1038491.

It is an arithmetic number, because the mean of its divisors is an integer number (3115461).

Almost surely, 210384865 is an apocalyptic number.

It is an amenable number.

10384865 is a deficient number, since it is larger than the sum of its proper divisors (2076979).

10384865 is an equidigital number, since it uses as much as digits as its factorization.

10384865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076978.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 10384865 is about 3222.5556628242. Note that the first 3 decimals coincide. The cubic root of 10384865 is about 218.1726391077.

The spelling of 10384865 in words is "ten million, three hundred eighty-four thousand, eight hundred sixty-five".

Divisors: 1 5 2076973 10384865