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12672198 = 23271141223
BaseRepresentation
bin110000010101…
…110011000110
3212211210222200
4300111303012
511221002243
61131335330
7212466120
oct60256306
925753880
1012672198
1171758a0
1242b1546
132818c56
14197c210
1511a4ad3
hexc15cc6

12672198 has 96 divisors (see below), whose sum is σ = 35223552. Its totient is φ = 3196800.

The previous prime is 12672181. The next prime is 12672223. The reversal of 12672198 is 89127621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56715 + ... + 56937.

It is an arithmetic number, because the mean of its divisors is an integer number (366912).

Almost surely, 212672198 is an apocalyptic number.

12672198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12672198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17611776).

12672198 is an abundant number, since it is smaller than the sum of its proper divisors (22551354).

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

12672198 is a wasteful number, since it uses less digits than its factorization.

12672198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 287 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 12672198 is about 3559.8030844416. The cubic root of 12672198 is about 233.1402815897.

It can be divided in two parts, 12672 and 198, that multiplied together give a square (2509056 = 15842).

The spelling of 12672198 in words is "twelve million, six hundred seventy-two thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 7 9 11 14 18 21 22 33 41 42 63 66 77 82 99 123 126 154 198 223 231 246 287 369 446 451 462 574 669 693 738 861 902 1338 1353 1386 1561 1722 2007 2453 2583 2706 3122 3157 4014 4059 4683 4906 5166 6314 7359 8118 9143 9366 9471 14049 14718 17171 18286 18942 22077 27429 28098 28413 34342 44154 51513 54858 56826 64001 82287 100573 103026 128002 154539 164574 192003 201146 301719 309078 384006 576009 603438 704011 905157 1152018 1408022 1810314 2112033 4224066 6336099 12672198