Search a number
-
+
12428190288 = 24364192543
BaseRepresentation
bin10111001001100011…
…10010001001010000
31012002010211111000000
423210301302021100
5200423104042123
65413123130000
7616660605633
oct134461621120
935063744000
1012428190288
1152a8431348
1224aa213900
131230a96467
1485c83dc1a
154cb151b43
hex2e4c72250

12428190288 has 140 divisors (see below), whose sum is σ = 36203307840. Its totient is φ = 4131217728.

The previous prime is 12428190251. The next prime is 12428190293. The reversal of 12428190288 is 88209182421.

12428190288 is a `hidden beast` number, since 1 + 2 + 4 + 281 + 90 + 288 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4885945 + ... + 4888487.

It is an arithmetic number, because the mean of its divisors is an integer number (258595056).

Almost surely, 212428190288 is an apocalyptic number.

12428190288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12428190288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18101653920).

12428190288 is an abundant number, since it is smaller than the sum of its proper divisors (23775117552).

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

12428190288 is an equidigital number, since it uses as much as digits as its factorization.

12428190288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 12428190288 in words is "twelve billion, four hundred twenty-eight million, one hundred ninety thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 243 324 419 432 486 648 729 838 972 1257 1296 1458 1676 1944 2514 2543 2916 3352 3771 3888 5028 5086 5832 6704 7542 7629 10056 10172 11313 11664 15084 15258 20112 20344 22626 22887 30168 30516 33939 40688 45252 45774 60336 61032 67878 68661 90504 91548 101817 122064 135756 137322 181008 183096 203634 205983 271512 274644 305451 366192 407268 411966 543024 549288 610902 617949 814536 823932 1065517 1098576 1221804 1235898 1629072 1647864 1853847 2131034 2443608 2471796 3196551 3295728 3707694 4262068 4887216 4943592 6393102 7415388 8524136 9589653 9887184 12786204 14830776 17048272 19179306 25572408 28768959 29661552 38358612 51144816 57537918 76717224 86306877 115075836 153434448 172613754 230151672 258920631 345227508 460303344 517841262 690455016 776761893 1035682524 1380910032 1553523786 2071365048 3107047572 4142730096 6214095144 12428190288