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12849228 = 2232750989
BaseRepresentation
bin110001000001…
…000001001100
3220011210211100
4301001001030
511242133403
61135223100
7214134210
oct61010114
926153740
1012849228
1172868a7
124377a90
13287b6c2
1419c6940
1511dc2a3
hexc4104c

12849228 has 36 divisors (see below), whose sum is σ = 37120720. Its totient is φ = 3671136.

The previous prime is 12849227. The next prime is 12849253. The reversal of 12849228 is 82294821.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12849192 and 12849201.

It is not an unprimeable number, because it can be changed into a prime (12849227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25243 + ... + 25746.

Almost surely, 212849228 is an apocalyptic number.

12849228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12849228 is an abundant number, since it is smaller than the sum of its proper divisors (24271492).

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

12849228 is a wasteful number, since it uses less digits than its factorization.

12849228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51006 (or 51001 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 12849228 is about 3584.5819839976. The cubic root of 12849228 is about 234.2209178192.

The spelling of 12849228 in words is "twelve million, eight hundred forty-nine thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 50989 101978 152967 203956 305934 356923 458901 611868 713846 917802 1070769 1427692 1835604 2141538 3212307 4283076 6424614 12849228