Search a number
-
+
12075857 = 22952733
BaseRepresentation
bin101110000100…
…001101010001
3211201111221222
4232010031101
511042411412
61110454425
7204433403
oct56041521
924644858
1012075857
1168a8852
124064415
13266a6a1
141864b73
1510d8072
hexb84351

12075857 has 4 divisors (see below), whose sum is σ = 12128820. Its totient is φ = 12022896.

The previous prime is 12075841. The next prime is 12075871. The reversal of 12075857 is 75857021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75857021 = 661114761.

It can be written as a sum of positive squares in 2 ways, for example, as 7392961 + 4682896 = 2719^2 + 2164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12075857 - 24 = 12075841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12075827) 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, 26138 + ... + 26595.

It is an arithmetic number, because the mean of its divisors is an integer number (3032205).

Almost surely, 212075857 is an apocalyptic number.

It is an amenable number.

12075857 is a deficient number, since it is larger than the sum of its proper divisors (52963).

12075857 is an equidigital number, since it uses as much as digits as its factorization.

12075857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52962.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 12075857 is about 3475.0333811346. The cubic root of 12075857 is about 229.4242499309.

The spelling of 12075857 in words is "twelve million, seventy-five thousand, eight hundred fifty-seven".

Divisors: 1 229 52733 12075857