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10648985 = 52129797
BaseRepresentation
bin101000100111…
…110110011001
3202001000122212
4220213312121
510211231420
61020124505
7156341414
oct50476631
922030585
1010648985
116013816
123696735
13228b099
1415b2b7b
15e053c5
hexa27d99

10648985 has 4 divisors (see below), whose sum is σ = 12778788. Its totient is φ = 8519184.

The previous prime is 10648943. The next prime is 10648991. The reversal of 10648985 is 58984601.

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 6744409 + 3904576 = 2597^2 + 1976^2 .

It is a cyclic number.

It is not a de Polignac number, because 10648985 - 216 = 10583449 is a prime.

It is a super-2 number, since 2×106489852 = 226801763060450, which contains 22 as substring.

It is a Duffinian 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, 1064894 + ... + 1064903.

It is an arithmetic number, because the mean of its divisors is an integer number (3194697).

Almost surely, 210648985 is an apocalyptic number.

It is an amenable number.

10648985 is a deficient number, since it is larger than the sum of its proper divisors (2129803).

10648985 is an equidigital number, since it uses as much as digits as its factorization.

10648985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129802.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 10648985 is about 3263.2782596647. The cubic root of 10648985 is about 220.0067835374.

The spelling of 10648985 in words is "ten million, six hundred forty-eight thousand, nine hundred eighty-five".

Divisors: 1 5 2129797 10648985