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10285078 = 25142539
BaseRepresentation
bin100111001111…
…000000010110
3201100112110211
4213033000112
510113110303
61004240034
7153264436
oct47170026
921315424
1010285078
115895371
12354001a
13219155b
14151a2c6
15d8266d
hex9cf016

10285078 has 4 divisors (see below), whose sum is σ = 15427620. Its totient is φ = 5142538.

The previous prime is 10285073. The next prime is 10285091. The reversal of 10285078 is 87058201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87058201 = 201143291.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10285073) 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 as a sum of consecutive naturals, namely, 2571268 + ... + 2571271.

It is an arithmetic number, because the mean of its divisors is an integer number (3856905).

Almost surely, 210285078 is an apocalyptic number.

10285078 is a deficient number, since it is larger than the sum of its proper divisors (5142542).

10285078 is an equidigital number, since it uses as much as digits as its factorization.

10285078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142541.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 10285078 is about 3207.0357029506. The cubic root of 10285078 is about 217.4715900709.

The spelling of 10285078 in words is "ten million, two hundred eighty-five thousand, seventy-eight".

Divisors: 1 2 5142539 10285078