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28230192 = 2432196043
BaseRepresentation
bin110101110110…
…0001000110000
31222010020112200
41223230020300
524211331232
62445023200
7461644524
oct153541060
958106480
1028230192
1114a31841
129554b00
135b05573
143a6bd84
15272977c
hex1aec230

28230192 has 30 divisors (see below), whose sum is σ = 79005732. Its totient is φ = 9410016.

The previous prime is 28230179. The next prime is 28230197. The reversal of 28230192 is 29103282.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28230197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97878 + ... + 98165.

Almost surely, 228230192 is an apocalyptic number.

It is an amenable number.

28230192 is an abundant number, since it is smaller than the sum of its proper divisors (50775540).

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

28230192 is a wasteful number, since it uses less digits than its factorization.

28230192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196057 (or 196048 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 28230192 is about 5313.2091997210. The cubic root of 28230192 is about 304.4887682204.

The spelling of 28230192 in words is "twenty-eight million, two hundred thirty thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 196043 392086 588129 784172 1176258 1568344 1764387 2352516 3136688 3528774 4705032 7057548 9410064 14115096 28230192