Search a number
-
+
12006965 = 52401393
BaseRepresentation
bin101101110011…
…011000110101
3211121000110102
4231303120311
511033210330
61105203445
7204025505
oct55633065
924530412
1012006965
116861013
124030585
132645219
141847a05
1510c2945
hexb73635

12006965 has 4 divisors (see below), whose sum is σ = 14408364. Its totient is φ = 9605568.

The previous prime is 12006941. The next prime is 12006971. The reversal of 12006965 is 56960021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56960021 = 109522569.

It can be written as a sum of positive squares in 2 ways, for example, as 1811716 + 10195249 = 1346^2 + 3193^2 .

It is a cyclic number.

It is not a de Polignac number, because 12006965 - 210 = 12005941 is a prime.

It is a super-2 number, since 2×120069652 = 288334417022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200692 + ... + 1200701.

It is an arithmetic number, because the mean of its divisors is an integer number (3602091).

Almost surely, 212006965 is an apocalyptic number.

It is an amenable number.

12006965 is a deficient number, since it is larger than the sum of its proper divisors (2401399).

12006965 is an equidigital number, since it uses as much as digits as its factorization.

12006965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401398.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 12006965 is about 3465.1067804615. The cubic root of 12006965 is about 228.9871340254.

Adding to 12006965 its reverse (56960021), we get a palindrome (68966986).

The spelling of 12006965 in words is "twelve million, six thousand, nine hundred sixty-five".

Divisors: 1 5 2401393 12006965