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28233010 = 2513415297
BaseRepresentation
bin110101110110…
…0110100110010
31222010101102001
41223230310302
524211424020
62445044214
7461655661
oct153546462
958111361
1028233010
1114a33973
12955666a
135b06930
143a6cdd8
15272a50a
hex1aecd32

28233010 has 32 divisors (see below), whose sum is σ = 56074032. Its totient is φ = 10168320.

The previous prime is 28232987. The next prime is 28233011. The reversal of 28233010 is 1033282.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4447881 + 23785129 = 2109^2 + 4877^2 .

It is not an unprimeable number, because it can be changed into a prime (28233011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2682 + ... + 7978.

Almost surely, 228233010 is an apocalyptic number.

28233010 is a deficient number, since it is larger than the sum of its proper divisors (27841022).

28233010 is a wasteful number, since it uses less digits than its factorization.

28233010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 28233010 is about 5313.4743812312. The cubic root of 28233010 is about 304.4988994633.

Adding to 28233010 its reverse (1033282), we get a palindrome (29266292).

The spelling of 28233010 in words is "twenty-eight million, two hundred thirty-three thousand, ten".

Divisors: 1 2 5 10 13 26 41 65 82 130 205 410 533 1066 2665 5297 5330 10594 26485 52970 68861 137722 217177 344305 434354 688610 1085885 2171770 2823301 5646602 14116505 28233010