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28260102 = 2313362309
BaseRepresentation
bin110101111001…
…1011100000110
31222011202120110
41223303130012
524213310402
62445413450
7462130653
oct153633406
958152513
1028260102
1114a52262
12956a286
135b16070
143a78c2a
15273356c
hex1af3706

28260102 has 16 divisors (see below), whose sum is σ = 60868080. Its totient is φ = 8695392.

The previous prime is 28260083. The next prime is 28260109. The reversal of 28260102 is 20106282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28260109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181077 + ... + 181232.

It is an arithmetic number, because the mean of its divisors is an integer number (3804255).

Almost surely, 228260102 is an apocalyptic number.

28260102 is an abundant number, since it is smaller than the sum of its proper divisors (32607978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28260102 is a wasteful number, since it uses less digits than its factorization.

28260102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362327.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 28260102 is about 5316.0231376472. The cubic root of 28260102 is about 304.5962659490.

Adding to 28260102 its reverse (20106282), we get a palindrome (48366384).

The spelling of 28260102 in words is "twenty-eight million, two hundred sixty thousand, one hundred two".

Divisors: 1 2 3 6 13 26 39 78 362309 724618 1086927 2173854 4710017 9420034 14130051 28260102