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28860063 = 39620021
BaseRepresentation
bin110111000010…
…1111010011111
32000022020120020
41232011322133
524342010223
62510323223
7500210061
oct156057237
960266506
1028860063
1115321aa1
1297b9513
135c9617b
143b93731
1528011e3
hex1b85e9f

28860063 has 4 divisors (see below), whose sum is σ = 38480088. Its totient is φ = 19240040.

The previous prime is 28860061. The next prime is 28860089. The reversal of 28860063 is 36006882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28860063 - 21 = 28860061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4810008 + ... + 4810013.

It is an arithmetic number, because the mean of its divisors is an integer number (9620022).

Almost surely, 228860063 is an apocalyptic number.

28860063 is a deficient number, since it is larger than the sum of its proper divisors (9620025).

28860063 is an equidigital number, since it uses as much as digits as its factorization.

28860063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9620024.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28860063 is about 5372.1562709958. The cubic root of 28860063 is about 306.7367122343.

The spelling of 28860063 in words is "twenty-eight million, eight hundred sixty thousand, sixty-three".

Divisors: 1 3 9620021 28860063