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10285081 = 31133071
BaseRepresentation
bin100111001111…
…000000011001
3201100112110221
4213033000121
510113110311
61004240041
7153264442
oct47170031
921315427
1010285081
115895374
123540021
132191561
14151a2c9
15d82671
hex9cf019

10285081 has 4 divisors (see below), whose sum is σ = 10318464. Its totient is φ = 10251700.

The previous prime is 10285073. The next prime is 10285091. The reversal of 10285081 is 18058201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10285081 - 23 = 10285073 is a prime.

It is a super-2 number, since 2×102850812 = 211565782353122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10285091) 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, 16225 + ... + 16846.

It is an arithmetic number, because the mean of its divisors is an integer number (2579616).

Almost surely, 210285081 is an apocalyptic number.

It is an amenable number.

10285081 is a deficient number, since it is larger than the sum of its proper divisors (33383).

10285081 is an equidigital number, since it uses as much as digits as its factorization.

10285081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33382.

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

The square root of 10285081 is about 3207.0361706722. The cubic root of 10285081 is about 217.4716112153.

The spelling of 10285081 in words is "ten million, two hundred eighty-five thousand, eighty-one".

Divisors: 1 311 33071 10285081