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12290973 = 331283467
BaseRepresentation
bin101110111000…
…101110011101
3212010110001020
4232320232131
511121302343
61115234353
7206320512
oct56705635
925113036
1012290973
116a35432
1241489b9
132714586
1418bd309
15112bb83
hexbb8b9d

12290973 has 16 divisors (see below), whose sum is σ = 17012736. Its totient is φ = 7884720.

The previous prime is 12290963. The next prime is 12290977. The reversal of 12290973 is 37909221.

It is not a de Polignac number, because 12290973 - 26 = 12290909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26086 + ... + 26552.

It is an arithmetic number, because the mean of its divisors is an integer number (1063296).

Almost surely, 212290973 is an apocalyptic number.

It is an amenable number.

12290973 is a deficient number, since it is larger than the sum of its proper divisors (4721763).

12290973 is a wasteful number, since it uses less digits than its factorization.

12290973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 12290973 is about 3505.8483994605. The cubic root of 12290973 is about 230.7785400262.

The spelling of 12290973 in words is "twelve million, two hundred ninety thousand, nine hundred seventy-three".

Divisors: 1 3 31 93 283 467 849 1401 8773 14477 26319 43431 132161 396483 4096991 12290973