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10025987 = 28333539
BaseRepresentation
bin100110001111…
…110000000011
3200212101001212
4212033300003
510031312422
6554520335
7151135166
oct46176003
920771055
1010025987
115728744
1234360ab
13210064a
14148dadd
15d309e2
hex98fc03

10025987 has 4 divisors (see below), whose sum is σ = 10032360. Its totient is φ = 10019616.

The previous prime is 10025933. The next prime is 10026011. The reversal of 10025987 is 78952001.

10025987 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 78952001 = 547114431.

It is a cyclic number.

It is not a de Polignac number, because 10025987 - 28 = 10025731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10025287) 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, 1064 + ... + 4602.

It is an arithmetic number, because the mean of its divisors is an integer number (2508090).

Almost surely, 210025987 is an apocalyptic number.

10025987 is a deficient number, since it is larger than the sum of its proper divisors (6373).

10025987 is an equidigital number, since it uses as much as digits as its factorization.

10025987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 10025987 is about 3166.3838996559. The cubic root of 10025987 is about 215.6299318903.

Adding to 10025987 its reverse (78952001), we get a palindrome (88977988).

The spelling of 10025987 in words is "ten million, twenty-five thousand, nine hundred eighty-seven".

Divisors: 1 2833 3539 10025987