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12201382 = 219547587
BaseRepresentation
bin101110100010…
…110110100110
3211221220011001
4232202312212
511110421012
61113303514
7205465354
oct56426646
924856131
1012201382
116984096
124104b9a
1326b286b
1418987d4
151110357
hexba2da6

12201382 has 16 divisors (see below), whose sum is σ = 19333440. Its totient is φ = 5759208.

The previous prime is 12201367. The next prime is 12201407. The reversal of 12201382 is 28310221.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 7 ways as a sum of consecutive naturals, for example, 20493 + ... + 21079.

It is an arithmetic number, because the mean of its divisors is an integer number (1208340).

Almost surely, 212201382 is an apocalyptic number.

12201382 is a deficient number, since it is larger than the sum of its proper divisors (7132058).

12201382 is a wasteful number, since it uses less digits than its factorization.

12201382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12201382 is about 3493.0476664369. The cubic root of 12201382 is about 230.2164440122.

The spelling of 12201382 in words is "twelve million, two hundred one thousand, three hundred eighty-two".

Divisors: 1 2 19 38 547 587 1094 1174 10393 11153 20786 22306 321089 642178 6100691 12201382