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25287063 = 319144131
BaseRepresentation
bin110000001110…
…1100110010111
31202120201022220
41200131212113
522433141223
62301553423
7424636134
oct140354627
952521286
1025287063
11133015aa
128575873
135314a79
14350358b
1523476e3
hex181d997

25287063 has 8 divisors (see below), whose sum is σ = 33893376. Its totient is φ = 16769400.

The previous prime is 25287047. The next prime is 25287071. The reversal of 25287063 is 36078252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25287063 - 24 = 25287047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25287023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21493 + ... + 22638.

It is an arithmetic number, because the mean of its divisors is an integer number (4236672).

Almost surely, 225287063 is an apocalyptic number.

25287063 is a deficient number, since it is larger than the sum of its proper divisors (8606313).

25287063 is a wasteful number, since it uses less digits than its factorization.

25287063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44325.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 25287063 is about 5028.6243645753. The cubic root of 25287063 is about 293.5166870489.

It can be divided in two parts, 2528 and 7063, that added together give a triangular number (9591 = T138).

The spelling of 25287063 in words is "twenty-five million, two hundred eighty-seven thousand, sixty-three".

Divisors: 1 3 191 573 44131 132393 8429021 25287063