Search a number
-
+
28468317 = 333128669
BaseRepresentation
bin110110010011…
…0010001011101
31222120100012010
41230212101131
524241441232
62454101433
7463656003
oct154462135
958510163
1028468317
1115084739
12964a879
135b89a77
143ad0a73
1527750cc
hex1b2645d

28468317 has 8 divisors (see below), whose sum is σ = 38073760. Its totient is φ = 18920880.

The previous prime is 28468303. The next prime is 28468337. The reversal of 28468317 is 71386482.

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

It is not a de Polignac number, because 28468317 - 24 = 28468301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28468337) 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, 13342 + ... + 15327.

It is an arithmetic number, because the mean of its divisors is an integer number (4759220).

Almost surely, 228468317 is an apocalyptic number.

It is an amenable number.

28468317 is a deficient number, since it is larger than the sum of its proper divisors (9605443).

28468317 is a wasteful number, since it uses less digits than its factorization.

28468317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29003.

The product of its digits is 64512, while the sum is 39.

The square root of 28468317 is about 5335.5709160314. The cubic root of 28468317 is about 305.3425051380.

The spelling of 28468317 in words is "twenty-eight million, four hundred sixty-eight thousand, three hundred seventeen".

Divisors: 1 3 331 993 28669 86007 9489439 28468317