Search a number
-
+
2128379288262 = 236179293251231
BaseRepresentation
bin11110111110001101010…
…010101001101011000110
321112110201102010102001020
4132332031102221223012
5234332410044211022
64305433002412010
7306525136310223
oct36761522515306
97473642112036
102128379288262
11750705692227
122a45b1b01006
13125922730a76
147502a9d294a
153a56d90035c
hex1ef8d4a9ac6

2128379288262 has 64 divisors (see below), whose sum is σ = 4396278620160. Its totient is φ = 686641737600.

The previous prime is 2128379288249. The next prime is 2128379288263. The reversal of 2128379288262 is 2628829738212.

It is a junction number, because it is equal to n+sod(n) for n = 2128379288196 and 2128379288205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128379288263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8346187 + ... + 8597417.

It is an arithmetic number, because the mean of its divisors is an integer number (68691853440).

Almost surely, 22128379288262 is an apocalyptic number.

2128379288262 is an abundant number, since it is smaller than the sum of its proper divisors (2267899331898).

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

2128379288262 is a wasteful number, since it uses less digits than its factorization.

2128379288262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251669.

The product of its digits is 18579456, while the sum is 60.

The spelling of 2128379288262 in words is "two trillion, one hundred twenty-eight billion, three hundred seventy-nine million, two hundred eighty-eight thousand, two hundred sixty-two".

Divisors: 1 2 3 6 61 79 122 158 183 237 293 366 474 586 879 1758 4819 9638 14457 17873 23147 28914 35746 46294 53619 69441 107238 138882 251231 502462 753693 1411967 1507386 2823934 4235901 8471802 15325091 19847249 30650182 39694498 45975273 59541747 73610683 91950546 119083494 147221366 220832049 441664098 1210682189 2421364378 3632046567 4490251663 5815243957 7264093134 8980503326 11630487914 13470754989 17445731871 26941509978 34891463742 354729881377 709459762754 1064189644131 2128379288262