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28141651 = 433591823
BaseRepresentation
bin110101101011…
…0100001010011
31221221202002101
41223112201103
524201013101
62443101231
7461125426
oct153264123
957852071
1028141651
111498126a
129511817
135aa4185
143a479bd
15270d401
hex1ad6853

28141651 has 8 divisors (see below), whose sum is σ = 28892160. Its totient is φ = 27395592.

The previous prime is 28141637. The next prime is 28141661. The reversal of 28141651 is 15614182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28141651 - 213 = 28133459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28141601) 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 7 ways as a sum of consecutive naturals, for example, 14526 + ... + 16348.

It is an arithmetic number, because the mean of its divisors is an integer number (3611520).

Almost surely, 228141651 is an apocalyptic number.

28141651 is a deficient number, since it is larger than the sum of its proper divisors (750509).

28141651 is a wasteful number, since it uses less digits than its factorization.

28141651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225.

The product of its digits is 1920, while the sum is 28.

The square root of 28141651 is about 5304.8704979481. The cubic root of 28141651 is about 304.1701026029.

It can be divided in two parts, 2814 and 1651, that added together give a triangular number (4465 = T94).

The spelling of 28141651 in words is "twenty-eight million, one hundred forty-one thousand, six hundred fifty-one".

Divisors: 1 43 359 1823 15437 78389 654457 28141651