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28182966 = 2371935317
BaseRepresentation
bin110101110000…
…0100110110110
31222000211202120
41223200212312
524203323331
62444020410
7461360040
oct153404666
958024676
1028182966
11149aa309
129531706
135ab9c16
143a58a90
15271a796
hex1ae09b6

28182966 has 32 divisors (see below), whose sum is σ = 67810560. Its totient is φ = 7628256.

The previous prime is 28182961. The next prime is 28182971. The reversal of 28182966 is 66928182.

It is an interprime number because it is at equal distance from previous prime (28182961) and next prime (28182971).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28182961) 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 15 ways as a sum of consecutive naturals, for example, 16861 + ... + 18456.

It is an arithmetic number, because the mean of its divisors is an integer number (2119080).

Almost surely, 228182966 is an apocalyptic number.

28182966 is an abundant number, since it is smaller than the sum of its proper divisors (39627594).

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

28182966 is a wasteful number, since it uses less digits than its factorization.

28182966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35348.

The product of its digits is 82944, while the sum is 42.

The square root of 28182966 is about 5308.7631327834. The cubic root of 28182966 is about 304.3188814005.

The spelling of 28182966 in words is "twenty-eight million, one hundred eighty-two thousand, nine hundred sixty-six".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 399 798 35317 70634 105951 211902 247219 494438 671023 741657 1342046 1483314 2013069 4026138 4697161 9394322 14091483 28182966