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12302793 = 33455659
BaseRepresentation
bin101110111011…
…100111001001
3212011001021000
4232323213021
511122142133
61115405213
7206400126
oct56734711
925131230
1012302793
116a432a8
124153809
132719a79
1418c374d
151130413
hexbbb9c9

12302793 has 8 divisors (see below), whose sum is σ = 18226400. Its totient is φ = 8201844.

The previous prime is 12302779. The next prime is 12302803. The reversal of 12302793 is 39720321.

It is not a de Polignac number, because 12302793 - 25 = 12302761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 455659 = 12302793 / (1 + 2 + 3 + 0 + 2 + 7 + 9 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12302743) 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, 227803 + ... + 227856.

It is an arithmetic number, because the mean of its divisors is an integer number (2278300).

Almost surely, 212302793 is an apocalyptic number.

It is an amenable number.

12302793 is a deficient number, since it is larger than the sum of its proper divisors (5923607).

12302793 is an equidigital number, since it uses as much as digits as its factorization.

12302793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455668 (or 455662 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 12302793 is about 3507.5337489467. The cubic root of 12302793 is about 230.8524948000.

The spelling of 12302793 in words is "twelve million, three hundred two thousand, seven hundred ninety-three".

Divisors: 1 3 9 27 455659 1366977 4100931 12302793