Search a number
-
+
28360586280 = 23351321398451
BaseRepresentation
bin11010011010011011…
…000011010000101000
32201012111110001112110
4122122123003100220
5431040302230110
621010105442320
72022542002005
oct323233032050
981174401473
1028360586280
11110338a2264
1255b5aa03a0
13289c83c600
1415308148ac
15b0ec41a20
hex69a6c3428

28360586280 has 96 divisors (see below), whose sum is σ = 92130017760. Its totient is φ = 6981062400.

The previous prime is 28360586257. The next prime is 28360586351. The reversal of 28360586280 is 8268506382.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 678946 + ... + 719505.

It is an arithmetic number, because the mean of its divisors is an integer number (959687685).

Almost surely, 228360586280 is an apocalyptic number.

28360586280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28360586280 is an abundant number, since it is smaller than the sum of its proper divisors (63769431480).

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

28360586280 is a wasteful number, since it uses less digits than its factorization.

28360586280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398491 (or 1398474 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 28360586280 in words is "twenty-eight billion, three hundred sixty million, five hundred eighty-six thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 169 195 260 312 338 390 507 520 676 780 845 1014 1352 1560 1690 2028 2535 3380 4056 5070 6760 10140 20280 1398451 2796902 4195353 5593804 6992255 8390706 11187608 13984510 16781412 18179863 20976765 27969020 33562824 36359726 41953530 54539589 55938040 72719452 83907060 90899315 109079178 145438904 167814120 181798630 218158356 236338219 272697945 363597260 436316712 472676438 545395890 709014657 727194520 945352876 1090791780 1181691095 1418029314 1890705752 2181583560 2363382190 2836058628 3545073285 4726764380 5672117256 7090146570 9453528760 14180293140 28360586280