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28314756 = 22322233527
BaseRepresentation
bin110110000000…
…0110010000100
31222021112112200
41230000302010
524222033011
62450514500
7462446211
oct154006204
958245480
1028314756
1114a8a328
129595a30
135b34bc2
143a90b08
152744856
hex1b00c84

28314756 has 36 divisors (see below), whose sum is σ = 71914752. Its totient is φ = 9393264.

The previous prime is 28314743. The next prime is 28314779. The reversal of 28314756 is 65741382.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28314756.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6265 + ... + 9791.

It is an arithmetic number, because the mean of its divisors is an integer number (1997632).

Almost surely, 228314756 is an apocalyptic number.

It is an amenable number.

28314756 is an abundant number, since it is smaller than the sum of its proper divisors (43599996).

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

28314756 is a wasteful number, since it uses less digits than its factorization.

28314756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760 (or 3755 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 28314756 is about 5321.1611514781. The cubic root of 28314756 is about 304.7924988337.

The spelling of 28314756 in words is "twenty-eight million, three hundred fourteen thousand, seven hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 36 223 446 669 892 1338 2007 2676 3527 4014 7054 8028 10581 14108 21162 31743 42324 63486 126972 786521 1573042 2359563 3146084 4719126 7078689 9438252 14157378 28314756