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28836212 = 2249914447
BaseRepresentation
bin110111000000…
…0000101110100
32000021000211212
41232000011310
524340224322
62510020552
7500050406
oct156000564
960230755
1028836212
1115306089
1297a7758
135c88362
143b88b76
1527e90e2
hex1b80174

28836212 has 12 divisors (see below), whose sum is σ = 50568000. Its totient is φ = 14388216.

The previous prime is 28836193. The next prime is 28836229. The reversal of 28836212 is 21263882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5228 + ... + 9219.

It is an arithmetic number, because the mean of its divisors is an integer number (4214000).

Almost surely, 228836212 is an apocalyptic number.

It is an amenable number.

28836212 is a deficient number, since it is larger than the sum of its proper divisors (21731788).

28836212 is a wasteful number, since it uses less digits than its factorization.

28836212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14950 (or 14948 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 28836212 is about 5369.9359400276. The cubic root of 28836212 is about 306.6521895077.

The spelling of 28836212 in words is "twenty-eight million, eight hundred thirty-six thousand, two hundred twelve".

Divisors: 1 2 4 499 998 1996 14447 28894 57788 7209053 14418106 28836212