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28926043 = 1371991061
BaseRepresentation
bin110111001011…
…0000001011011
32000102121001221
41232112001123
524401113133
62511552511
7500603326
oct156260133
960377057
1028926043
1115367623
12982b737
135cba203
143bad7bd
152815a2d
hex1b9605b

28926043 has 8 divisors (see below), whose sum is σ = 29311200. Its totient is φ = 28543680.

The previous prime is 28926041. The next prime is 28926049. The reversal of 28926043 is 34062982.

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 28926043 - 21 = 28926041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28926041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26733 + ... + 27793.

It is an arithmetic number, because the mean of its divisors is an integer number (3663900).

Almost surely, 228926043 is an apocalyptic number.

28926043 is a deficient number, since it is larger than the sum of its proper divisors (385157).

28926043 is a wasteful number, since it uses less digits than its factorization.

28926043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 28926043 is about 5378.2936885224. The cubic root of 28926043 is about 306.9702885866.

The spelling of 28926043 in words is "twenty-eight million, nine hundred twenty-six thousand, forty-three".

Divisors: 1 137 199 1061 27263 145357 211139 28926043