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28930754 = 214465377
BaseRepresentation
bin110111001011…
…1001011000010
32000102211112102
41232113023002
524401241004
62512030402
7500623136
oct156271302
960384472
1028930754
1115370116
129832402
135cbc3b8
143bb13c6
15281711e
hex1b972c2

28930754 has 4 divisors (see below), whose sum is σ = 43396134. Its totient is φ = 14465376.

The previous prime is 28930723. The next prime is 28930763. The reversal of 28930754 is 45703982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 5650129 = 4825^2 + 2377^2 .

It is a Curzon 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 as a sum of consecutive naturals, namely, 7232687 + ... + 7232690.

Almost surely, 228930754 is an apocalyptic number.

28930754 is a deficient number, since it is larger than the sum of its proper divisors (14465380).

28930754 is a wasteful number, since it uses less digits than its factorization.

28930754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14465379.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 28930754 is about 5378.7316348745. The cubic root of 28930754 is about 306.9869524459.

The spelling of 28930754 in words is "twenty-eight million, nine hundred thirty thousand, seven hundred fifty-four".

Divisors: 1 2 14465377 28930754