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12008153 = 59920047
BaseRepresentation
bin101101110011…
…101011011001
3211121002002102
4231303223121
511033230103
61105213145
7204032123
oct55635331
924532072
1012008153
1168619a3
1240311b5
132645921
141848213
1510c2e88
hexb73ad9

12008153 has 4 divisors (see below), whose sum is σ = 12028800. Its totient is φ = 11987508.

The previous prime is 12008149. The next prime is 12008167. The reversal of 12008153 is 35180021.

12008153 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 35180021 = 172069413.

It is a cyclic number.

It is not a de Polignac number, because 12008153 - 22 = 12008149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12008173) 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, 9425 + ... + 10622.

It is an arithmetic number, because the mean of its divisors is an integer number (3007200).

Almost surely, 212008153 is an apocalyptic number.

It is an amenable number.

12008153 is a deficient number, since it is larger than the sum of its proper divisors (20647).

12008153 is an equidigital number, since it uses as much as digits as its factorization.

12008153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20646.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 12008153 is about 3465.2781995101. The cubic root of 12008153 is about 228.9946859684.

Adding to 12008153 its reverse (35180021), we get a palindrome (47188174).

The spelling of 12008153 in words is "twelve million, eight thousand, one hundred fifty-three".

Divisors: 1 599 20047 12008153