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12790973 = 134572153
BaseRepresentation
bin110000110010…
…110010111101
3220001211220202
4300302302331
511233302343
61134053245
7213502316
oct60626275
926054822
1012790973
117247058
12434a225
13285b030
1419ad60d
1511c9db8
hexc32cbd

12790973 has 8 divisors (see below), whose sum is σ = 13811448. Its totient is φ = 11775744.

The previous prime is 12790963. The next prime is 12790993. The reversal of 12790973 is 37909721.

It can be written as a sum of positive squares in 4 ways, for example, as 273529 + 12517444 = 523^2 + 3538^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12790973 - 24 = 12790957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12790913) by changing a digit.

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, 4865 + ... + 7017.

It is an arithmetic number, because the mean of its divisors is an integer number (1726431).

Almost surely, 212790973 is an apocalyptic number.

12790973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12790973 is a deficient number, since it is larger than the sum of its proper divisors (1020475).

12790973 is a wasteful number, since it uses less digits than its factorization.

12790973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 12790973 is about 3576.4469798950. The cubic root of 12790973 is about 233.8664163165.

The spelling of 12790973 in words is "twelve million, seven hundred ninety thousand, nine hundred seventy-three".

Divisors: 1 13 457 2153 5941 27989 983921 12790973