Search a number
-
+
28309014192 = 2432325642223
BaseRepresentation
bin11010010111010110…
…010100011010110000
32201001220101220221010
4122113112110122300
5430434101423232
621001024230520
72021344436034
oct322726243260
981056356833
1028309014192
11110077783a8
1255a076b440
132891c53794
141527a2c1c4
15b0a4560cc
hex6975946b0

28309014192 has 40 divisors (see below), whose sum is σ = 76311258624. Its totient is φ = 9026062144.

The previous prime is 28309014163. The next prime is 28309014203. The reversal of 28309014192 is 29141090382.

It is a self number, because there is not a number n which added to its sum of digits gives 28309014192.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12820008 + ... + 12822215.

Almost surely, 228309014192 is an apocalyptic number.

It is an amenable number.

28309014192 is an abundant number, since it is smaller than the sum of its proper divisors (48002244432).

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

28309014192 is a wasteful number, since it uses less digits than its factorization.

28309014192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25642257 (or 25642251 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 28309014192 in words is "twenty-eight billion, three hundred nine million, fourteen thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 23 24 46 48 69 92 138 184 276 368 552 1104 25642223 51284446 76926669 102568892 153853338 205137784 307706676 410275568 589771129 615413352 1179542258 1230826704 1769313387 2359084516 3538626774 4718169032 7077253548 9436338064 14154507096 28309014192