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12036973 = 13925921
BaseRepresentation
bin101101111010…
…101101101101
3211122112121211
4231322231231
511040140343
61105554421
7204212134
oct55725555
924575554
1012036973
116881613
124045a11
132655a90
14185491b
1510cb79d
hexb7ab6d

12036973 has 4 divisors (see below), whose sum is σ = 12962908. Its totient is φ = 11111040.

The previous prime is 12036971. The next prime is 12036977. The reversal of 12036973 is 37963021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 10778089 = 1122^2 + 3283^2 .

It is a cyclic number.

It is not a de Polignac number, because 12036973 - 21 = 12036971 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 (12036971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462948 + ... + 462973.

It is an arithmetic number, because the mean of its divisors is an integer number (3240727).

Almost surely, 212036973 is an apocalyptic number.

12036973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12036973 is a deficient number, since it is larger than the sum of its proper divisors (925935).

12036973 is an equidigital number, since it uses as much as digits as its factorization.

12036973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925934.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 12036973 is about 3469.4341037120. The cubic root of 12036973 is about 229.1777381024.

Adding to 12036973 its reverse (37963021), we get a palindrome (49999994).

The spelling of 12036973 in words is "twelve million, thirty-six thousand, nine hundred seventy-three".

Divisors: 1 13 925921 12036973