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12078973 = 19876079
BaseRepresentation
bin101110000100…
…111101111101
3211201200020101
4232010331331
511043011343
61110521101
7204445444
oct56047575
924650211
1012078973
116900125
124066191
13266bc2a
141865d5b
1510d8e4d
hexb84f7d

12078973 has 4 divisors (see below), whose sum is σ = 12087040. Its totient is φ = 12070908.

The previous prime is 12078971. The next prime is 12079007. The reversal of 12078973 is 37987021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12078973 - 21 = 12078971 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 (12078971) 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, 1053 + ... + 5026.

It is an arithmetic number, because the mean of its divisors is an integer number (3021760).

Almost surely, 212078973 is an apocalyptic number.

It is an amenable number.

12078973 is a deficient number, since it is larger than the sum of its proper divisors (8067).

12078973 is an equidigital number, since it uses as much as digits as its factorization.

12078973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8066.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 12078973 is about 3475.4816932333. The cubic root of 12078973 is about 229.4439814355.

The spelling of 12078973 in words is "twelve million, seventy-eight thousand, nine hundred seventy-three".

Divisors: 1 1987 6079 12078973