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28333914 = 2373491933
BaseRepresentation
bin110110000010…
…1011101011010
31222022111211020
41230011131122
524223141124
62451143310
7462556110
oct154053532
958274736
1028333914
1114aa2764
1295a4b36
135b4083b
143a97ab0
15274a379
hex1b0575a

28333914 has 32 divisors (see below), whose sum is σ = 64982400. Its totient is φ = 8068032.

The previous prime is 28333901. The next prime is 28333933. The reversal of 28333914 is 41933382.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13692 + ... + 15624.

It is an arithmetic number, because the mean of its divisors is an integer number (2030700).

Almost surely, 228333914 is an apocalyptic number.

28333914 is an abundant number, since it is smaller than the sum of its proper divisors (36648486).

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

28333914 is a wasteful number, since it uses less digits than its factorization.

28333914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its digits is 15552, while the sum is 33.

The square root of 28333914 is about 5322.9610180801. The cubic root of 28333914 is about 304.8612250512.

The spelling of 28333914 in words is "twenty-eight million, three hundred thirty-three thousand, nine hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 349 698 1047 1933 2094 2443 3866 4886 5799 7329 11598 13531 14658 27062 40593 81186 674617 1349234 2023851 4047702 4722319 9444638 14166957 28333914