Search a number
-
+
28137484342 = 2111278976561
BaseRepresentation
bin11010001101000111…
…111111000000110110
32200121221122022012201
4122031013333000312
5430111143444332
620532015535114
72014162446022
oct321507770066
980557568181
1028137484342
1110a299704a0
12555322a49a
132865557026
14150cd3b382
15aea3725e7
hex68d1ff036

28137484342 has 8 divisors (see below), whose sum is σ = 46043156232. Its totient is φ = 12789765600.

The previous prime is 28137484339. The next prime is 28137484379. The reversal of 28137484342 is 24348473182.

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

It is a junction number, because it is equal to n+sod(n) for n = 28137484292 and 28137484301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639488259 + ... + 639488302.

It is an arithmetic number, because the mean of its divisors is an integer number (5755394529).

Almost surely, 228137484342 is an apocalyptic number.

28137484342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28137484342 is a deficient number, since it is larger than the sum of its proper divisors (17905671890).

28137484342 is a wasteful number, since it uses less digits than its factorization.

28137484342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278976574.

The product of its digits is 1032192, while the sum is 46.

The spelling of 28137484342 in words is "twenty-eight billion, one hundred thirty-seven million, four hundred eighty-four thousand, three hundred forty-two".

Divisors: 1 2 11 22 1278976561 2557953122 14068742171 28137484342