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28436996 = 2271953453
BaseRepresentation
bin110110001111…
…0101000000100
31222111202020002
41230132220010
524234440441
62453300432
7463465460
oct154365004
958452202
1028436996
1115063155
129634718
135b78733
143ac34a0
15276ab9b
hex1b1ea04

28436996 has 24 divisors (see below), whose sum is σ = 59868480. Its totient is φ = 11545632.

The previous prime is 28436987. The next prime is 28436999. The reversal of 28436996 is 69963482.

It is a self number, because there is not a number n which added to its sum of digits gives 28436996.

It is not an unprimeable number, because it can be changed into a prime (28436999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26195 + ... + 27258.

It is an arithmetic number, because the mean of its divisors is an integer number (2494520).

Almost surely, 228436996 is an apocalyptic number.

It is an amenable number.

28436996 is an abundant number, since it is smaller than the sum of its proper divisors (31431484).

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

28436996 is a wasteful number, since it uses less digits than its factorization.

28436996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53483 (or 53481 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 28436996 is about 5332.6349959471. The cubic root of 28436996 is about 305.2304842076.

The spelling of 28436996 in words is "twenty-eight million, four hundred thirty-six thousand, nine hundred ninety-six".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 53453 106906 213812 374171 748342 1015607 1496684 2031214 4062428 7109249 14218498 28436996