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10422805 = 52084561
BaseRepresentation
bin100111110000…
…101000010101
3201121112101211
4213300220111
510132012210
61011221421
7154410121
oct47605025
921545354
1010422805
115979898
1235a7871
13220c153
141554581
15dad38a
hex9f0a15

10422805 has 4 divisors (see below), whose sum is σ = 12507372. Its totient is φ = 8338240.

The previous prime is 10422791. The next prime is 10422809. The reversal of 10422805 is 50822401.

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 2093809 + 8328996 = 1447^2 + 2886^2 .

It is not a de Polignac number, because 10422805 - 217 = 10291733 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 (10422809) 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, 1042276 + ... + 1042285.

It is an arithmetic number, because the mean of its divisors is an integer number (3126843).

Almost surely, 210422805 is an apocalyptic number.

It is an amenable number.

10422805 is a deficient number, since it is larger than the sum of its proper divisors (2084567).

10422805 is an equidigital number, since it uses as much as digits as its factorization.

10422805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084566.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 10422805 is about 3228.4369282983. The cubic root of 10422805 is about 218.4380063851.

The spelling of 10422805 in words is "ten million, four hundred twenty-two thousand, eight hundred five".

Divisors: 1 5 2084561 10422805