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10012885 = 52002577
BaseRepresentation
bin100110001100…
…100011010101
3200211201002121
4212030203111
510030403020
6554335541
7151052041
oct46144325
920751077
1010012885
115719913
12342a5b1
1320c76ac
141489021
15d2bbaa
hex98c8d5

10012885 has 4 divisors (see below), whose sum is σ = 12015468. Its totient is φ = 8010304.

The previous prime is 10012879. The next prime is 10012901. The reversal of 10012885 is 58821001.

10012885 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, and also an emirpimes, since its reverse is a distinct semiprime: 58821001 = 380315467.

It can be written as a sum of positive squares in 2 ways, for example, as 3976036 + 6036849 = 1994^2 + 2457^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012885 - 25 = 10012853 is a prime.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001284 + ... + 1001293.

It is an arithmetic number, because the mean of its divisors is an integer number (3003867).

Almost surely, 210012885 is an apocalyptic number.

It is an amenable number.

10012885 is a deficient number, since it is larger than the sum of its proper divisors (2002583).

10012885 is an equidigital number, since it uses as much as digits as its factorization.

10012885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002582.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 10012885 is about 3164.3143017090. The cubic root of 10012885 is about 215.5359622586.

Adding to 10012885 its reverse (58821001), we get a palindrome (68833886).

The spelling of 10012885 in words is "ten million, twelve thousand, eight hundred eighty-five".

Divisors: 1 5 2002577 10012885