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28182196 = 2271006507
BaseRepresentation
bin110101110000…
…0011010110100
31222000210201001
41223200122310
524203312241
62444013044
7461354560
oct153403264
958023631
1028182196
11149a9779
129531184
135ab9773
143a586a0
15271a431
hex1ae06b4

28182196 has 12 divisors (see below), whose sum is σ = 56364448. Its totient is φ = 12078072.

The previous prime is 28182191. The next prime is 28182221. The reversal of 28182196 is 69128182.

28182196 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28182191) 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, 503226 + ... + 503281.

Almost surely, 228182196 is an apocalyptic number.

It is an amenable number.

28182196 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28182196 is a wasteful number, since it uses less digits than its factorization.

28182196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006518 (or 1006516 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 28182196 is about 5308.6906106873. The cubic root of 28182196 is about 304.3161098958.

The spelling of 28182196 in words is "twenty-eight million, one hundred eighty-two thousand, one hundred ninety-six".

Divisors: 1 2 4 7 14 28 1006507 2013014 4026028 7045549 14091098 28182196