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11889228 = 2231376213
BaseRepresentation
bin101101010110…
…101001001100
3211101000221210
4231112221030
511020423403
61102454420
7203025321
oct55265114
924330853
1011889228
11679060a
123b94410
132603760
141816b48
15109cb03
hexb56a4c

11889228 has 24 divisors (see below), whose sum is σ = 29875888. Its totient is φ = 3658176.

The previous prime is 11889203. The next prime is 11889233. The reversal of 11889228 is 82298811.

11889228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37951 + ... + 38262.

Almost surely, 211889228 is an apocalyptic number.

It is an amenable number.

11889228 is an abundant number, since it is smaller than the sum of its proper divisors (17986660).

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

11889228 is a wasteful number, since it uses less digits than its factorization.

11889228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76233 (or 76231 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 11889228 is about 3448.0759852416. The cubic root of 11889228 is about 228.2362125660.

The spelling of 11889228 in words is "eleven million, eight hundred eighty-nine thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 76213 152426 228639 304852 457278 914556 990769 1981538 2972307 3963076 5944614 11889228