Search a number
-
+
28382463 = 327144417
BaseRepresentation
bin110110001000…
…1010011111111
31222101222102100
41230101103333
524231214323
62452200143
7463150464
oct154212377
958358370
1028382463
111502618a
129609053
135b59975
143aab66b
152759943
hex1b114ff

28382463 has 12 divisors (see below), whose sum is σ = 41575248. Its totient is φ = 18654720.

The previous prime is 28382461. The next prime is 28382479. The reversal of 28382463 is 36428382.

It is not a de Polignac number, because 28382463 - 21 = 28382461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28382461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21570 + ... + 22847.

It is an arithmetic number, because the mean of its divisors is an integer number (3464604).

Almost surely, 228382463 is an apocalyptic number.

28382463 is a deficient number, since it is larger than the sum of its proper divisors (13192785).

28382463 is a wasteful number, since it uses less digits than its factorization.

28382463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44494 (or 44491 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 28382463 is about 5327.5194040003. The cubic root of 28382463 is about 305.0352480987.

It can be divided in two parts, 2 and 8382463, that added together give a triangular number (8382465 = T4094).

The spelling of 28382463 in words is "twenty-eight million, three hundred eighty-two thousand, four hundred sixty-three".

Divisors: 1 3 9 71 213 639 44417 133251 399753 3153607 9460821 28382463