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28933058 = 2711187877
BaseRepresentation
bin110111001011…
…1101111000010
32000102221200202
41232113233002
524401324213
62512045202
7500632640
oct156275702
960387622
1028933058
1115371920
129833802
135cc046b
143bb2190
152817b58
hex1b97bc2

28933058 has 16 divisors (see below), whose sum is σ = 54108864. Its totient is φ = 11272560.

The previous prime is 28933049. The next prime is 28933061. The reversal of 28933058 is 85033982.

It is a super-3 number, since 3×289330583 (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93785 + ... + 94092.

It is an arithmetic number, because the mean of its divisors is an integer number (3381804).

Almost surely, 228933058 is an apocalyptic number.

28933058 is a deficient number, since it is larger than the sum of its proper divisors (25175806).

28933058 is a wasteful number, since it uses less digits than its factorization.

28933058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187897.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 28933058 is about 5378.9458074980. The cubic root of 28933058 is about 306.9951015498.

The spelling of 28933058 in words is "twenty-eight million, nine hundred thirty-three thousand, fifty-eight".

Divisors: 1 2 7 11 14 22 77 154 187877 375754 1315139 2066647 2630278 4133294 14466529 28933058