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10500605 = 52100121
BaseRepresentation
bin101000000011…
…100111111101
3201202111010022
4220003213331
510142004410
61013021525
7155153003
oct50034775
921674108
1010500605
115a22295
1236248a5
13223869b
141574a73
15dc6455
hexa039fd

10500605 has 4 divisors (see below), whose sum is σ = 12600732. Its totient is φ = 8400480.

The previous prime is 10500593. The next prime is 10500613. The reversal of 10500605 is 50600501.

10500605 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.

It can be written as a sum of positive squares in 2 ways, for example, as 7166329 + 3334276 = 2677^2 + 1826^2 .

It is not a de Polignac number, because 10500605 - 216 = 10435069 is a prime.

It is a super-2 number, since 2×105006052 = 220525410732050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1050056 + ... + 1050065.

It is an arithmetic number, because the mean of its divisors is an integer number (3150183).

Almost surely, 210500605 is an apocalyptic number.

It is an amenable number.

10500605 is a deficient number, since it is larger than the sum of its proper divisors (2100127).

10500605 is an equidigital number, since it uses as much as digits as its factorization.

10500605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100126.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 10500605 is about 3240.4637013860. The cubic root of 10500605 is about 218.9801626423.

The spelling of 10500605 in words is "ten million, five hundred thousand, six hundred five".

Divisors: 1 5 2100121 10500605