Search a number
-
+
28327460 = 2257202339
BaseRepresentation
bin110110000001…
…1111000100100
31222022011222012
41230003320210
524222434320
62451053352
7462531230
oct154037044
958264865
1028327460
1114a98927
1295a1258
135b3a915
143a955c0
1527484c5
hex1b03e24

28327460 has 24 divisors (see below), whose sum is σ = 67986240. Its totient is φ = 9712224.

The previous prime is 28327447. The next prime is 28327463. The reversal of 28327460 is 6472382.

It is not an unprimeable number, because it can be changed into a prime (28327463) 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, 101030 + ... + 101309.

It is an arithmetic number, because the mean of its divisors is an integer number (2832760).

Almost surely, 228327460 is an apocalyptic number.

28327460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28327460 is an abundant number, since it is smaller than the sum of its proper divisors (39658780).

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

28327460 is a wasteful number, since it uses less digits than its factorization.

28327460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202355 (or 202353 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 28327460 is about 5322.3547420291. The cubic root of 28327460 is about 304.8380758343.

The spelling of 28327460 in words is "twenty-eight million, three hundred twenty-seven thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 202339 404678 809356 1011695 1416373 2023390 2832746 4046780 5665492 7081865 14163730 28327460