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28329124 = 2237191413
BaseRepresentation
bin110110000010…
…0010010100100
31222022021020211
41230010102210
524223012444
62451105204
7462536125
oct154042244
958267224
1028329124
1114a9a0aa
1295a2204
135b3b5c5
143a9604c
152748c34
hex1b044a4

28329124 has 12 divisors (see below), whose sum is σ = 50916124. Its totient is φ = 13781664.

The previous prime is 28329079. The next prime is 28329127. The reversal of 28329124 is 42192382.

It can be written as a sum of positive squares in 2 ways, for example, as 16646400 + 11682724 = 4080^2 + 3418^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28329127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95559 + ... + 95854.

Almost surely, 228329124 is an apocalyptic number.

It is an amenable number.

28329124 is a deficient number, since it is larger than the sum of its proper divisors (22587000).

28329124 is a wasteful number, since it uses less digits than its factorization.

28329124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191454 (or 191452 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 28329124 is about 5322.5110615197. The cubic root of 28329124 is about 304.8440446084.

The spelling of 28329124 in words is "twenty-eight million, three hundred twenty-nine thousand, one hundred twenty-four".

Divisors: 1 2 4 37 74 148 191413 382826 765652 7082281 14164562 28329124