Search a number
-
+
12185160 = 23351373107
BaseRepresentation
bin101110011110…
…111001001000
3211221001220020
4232132321020
511104411120
61113100440
7205400151
oct56367110
924831806
1012185160
116972989
1240b7720
1326a8370
141892928
15110a640
hexb9ee48

12185160 has 128 divisors (see below), whose sum is σ = 40279680. Its totient is φ = 2930688.

The previous prime is 12185123. The next prime is 12185171. The reversal of 12185160 is 6158121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12185160.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113827 + ... + 113933.

It is an arithmetic number, because the mean of its divisors is an integer number (314685).

Almost surely, 212185160 is an apocalyptic number.

12185160 is a gapful number since it is divisible by the number (10) 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 12185160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20139840).

12185160 is an abundant number, since it is smaller than the sum of its proper divisors (28094520).

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

12185160 is a wasteful number, since it uses less digits than its factorization.

12185160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 12185160 is about 3490.7248530928. The cubic root of 12185160 is about 230.1143728577.

The spelling of 12185160 in words is "twelve million, one hundred eighty-five thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 73 78 104 107 120 130 146 156 195 214 219 260 292 312 321 365 390 428 438 520 535 584 642 730 780 856 876 949 1070 1095 1284 1391 1460 1560 1605 1752 1898 2140 2190 2568 2782 2847 2920 3210 3796 4173 4280 4380 4745 5564 5694 6420 6955 7592 7811 8346 8760 9490 11128 11388 12840 13910 14235 15622 16692 18980 20865 22776 23433 27820 28470 31244 33384 37960 39055 41730 46866 55640 56940 62488 78110 83460 93732 101543 113880 117165 156220 166920 187464 203086 234330 304629 312440 406172 468660 507715 609258 812344 937320 1015430 1218516 1523145 2030860 2437032 3046290 4061720 6092580 12185160