Search a number
-
+
12151093 = 97125269
BaseRepresentation
bin101110010110…
…100100110101
3211212100011111
4232112210311
511102313333
61112235021
7205165633
oct56264465
924770144
1012151093
11694a329
12409ba71
1326959c6
141884353
1511004cd
hexb96935

12151093 has 4 divisors (see below), whose sum is σ = 12276460. Its totient is φ = 12025728.

The previous prime is 12151067. The next prime is 12151103. The reversal of 12151093 is 39015121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39015121 = 291345349.

It can be written as a sum of positive squares in 2 ways, for example, as 6874884 + 5276209 = 2622^2 + 2297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12151093 is a prime.

It is a super-2 number, since 2×121510932 = 295298122189298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151033) 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 3 ways as a sum of consecutive naturals, for example, 62538 + ... + 62731.

It is an arithmetic number, because the mean of its divisors is an integer number (3069115).

Almost surely, 212151093 is an apocalyptic number.

It is an amenable number.

12151093 is a deficient number, since it is larger than the sum of its proper divisors (125367).

12151093 is an equidigital number, since it uses as much as digits as its factorization.

12151093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125366.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 12151093 is about 3485.8417921644. The cubic root of 12151093 is about 229.8997231427.

The spelling of 12151093 in words is "twelve million, one hundred fifty-one thousand, ninety-three".

Divisors: 1 97 125269 12151093