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28896043 = 114361091
BaseRepresentation
bin110111000111…
…0101100101011
32000101001220211
41232032230223
524344133133
62511201551
7500420011
oct156165453
960331824
1028896043
1115347030
1298162b7
135ca9667
143ba28b1
15280bbcd
hex1b8eb2b

28896043 has 8 divisors (see below), whose sum is σ = 32256576. Its totient is φ = 25657800.

The previous prime is 28896041. The next prime is 28896053. The reversal of 28896043 is 34069882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28896043 - 21 = 28896041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28895987 and 28896005.

It is not an unprimeable number, because it can be changed into a prime (28896041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30073 + ... + 31018.

It is an arithmetic number, because the mean of its divisors is an integer number (4032072).

Almost surely, 228896043 is an apocalyptic number.

28896043 is a deficient number, since it is larger than the sum of its proper divisors (3360533).

28896043 is a wasteful number, since it uses less digits than its factorization.

28896043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61145.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 28896043 is about 5375.5039763728. The cubic root of 28896043 is about 306.8641294164.

The spelling of 28896043 in words is "twenty-eight million, eight hundred ninety-six thousand, forty-three".

Divisors: 1 11 43 473 61091 672001 2626913 28896043