Search a number
-
+
10505605230 = 234547927077
BaseRepresentation
bin10011100100010111…
…01101000001101110
31000010011011001010000
421302023231001232
5133003413331410
64454243325130
7521224112451
oct116213550156
930104131100
1010505605230
11450115a77a
1220523807a6
13cb5685973
14719377498
15417481dc0
hex2722ed06e

10505605230 has 80 divisors (see below), whose sum is σ = 28308424320. Its totient is φ = 2795542848.

The previous prime is 10505605213. The next prime is 10505605237. The reversal of 10505605230 is 3250650501.

10505605230 is a `hidden beast` number, since 1 + 0 + 50 + 5 + 605 + 2 + 3 + 0 = 666.

10505605230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×105056052302 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 10505605194 and 10505605203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10505605237) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 374452 + ... + 401528.

It is an arithmetic number, because the mean of its divisors is an integer number (353855304).

Almost surely, 210505605230 is an apocalyptic number.

10505605230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10505605230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14154212160).

10505605230 is an abundant number, since it is smaller than the sum of its proper divisors (17802819090).

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

10505605230 is a wasteful number, since it uses less digits than its factorization.

10505605230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27575 (or 27566 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 10505605230 in words is "ten billion, five hundred five million, six hundred five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 479 810 958 1437 2395 2874 4311 4790 7185 8622 12933 14370 21555 25866 27077 38799 43110 54154 64665 77598 81231 129330 135385 162462 193995 243693 270770 387990 406155 487386 731079 812310 1218465 1462158 2193237 2436930 3655395 4386474 7310790 10966185 12969883 21932370 25939766 38909649 64849415 77819298 116728947 129698830 194548245 233457894 350186841 389096490 583644735 700373682 1050560523 1167289470 1750934205 2101121046 3501868410 5252802615 10505605230