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12287652 = 2231327383
BaseRepresentation
bin101110110111…
…111010100100
3212010021111020
4232313322210
511121201102
61115211140
7206305026
oct56677244
925107436
1012287652
116a32993
124146ab0
132712c00
1418bc016
15112abbc
hexbb7ea4

12287652 has 72 divisors (see below), whose sum is σ = 31850784. Its totient is φ = 3684096.

The previous prime is 12287641. The next prime is 12287683. The reversal of 12287652 is 25678221.

It is a plaindrome in base 15.

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, 148003 + ... + 148085.

It is an arithmetic number, because the mean of its divisors is an integer number (442372).

Almost surely, 212287652 is an apocalyptic number.

12287652 is a gapful number since it is divisible by the number (12) 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 12287652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15925392).

12287652 is an abundant number, since it is smaller than the sum of its proper divisors (19563132).

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

12287652 is a wasteful number, since it uses less digits than its factorization.

12287652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 174 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 12287652 is about 3505.3747303248. The cubic root of 12287652 is about 230.7577528308.

The spelling of 12287652 in words is "twelve million, two hundred eighty-seven thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 73 78 83 146 156 166 169 219 249 292 332 338 438 498 507 676 876 949 996 1014 1079 1898 2028 2158 2847 3237 3796 4316 5694 6059 6474 11388 12118 12337 12948 14027 18177 24236 24674 28054 36354 37011 42081 49348 56108 72708 74022 78767 84162 148044 157534 168324 236301 315068 472602 945204 1023971 2047942 3071913 4095884 6143826 12287652