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12280994 = 2111015527
BaseRepresentation
bin101110110110…
…010010100010
3212002221100122
4232312102202
511120442434
61115120242
7206246435
oct56662242
925087318
1012280994
116a28990
124143082
13270cb7b
1418b981c
151128c2e
hexbb64a2

12280994 has 16 divisors (see below), whose sum is σ = 20298816. Its totient is φ = 5526000.

The previous prime is 12280993. The next prime is 12280997. The reversal of 12280994 is 49908221.

12280994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12280993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542 + ... + 4985.

It is an arithmetic number, because the mean of its divisors is an integer number (1268676).

Almost surely, 212280994 is an apocalyptic number.

12280994 is a deficient number, since it is larger than the sum of its proper divisors (8017822).

12280994 is a wasteful number, since it uses less digits than its factorization.

12280994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 12280994 is about 3504.4249171583. The cubic root of 12280994 is about 230.7160670068.

The spelling of 12280994 in words is "twelve million, two hundred eighty thousand, nine hundred ninety-four".

Divisors: 1 2 11 22 101 202 1111 2222 5527 11054 60797 121594 558227 1116454 6140497 12280994