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12320153 = 37932507
BaseRepresentation
bin101110111111…
…110110011001
3212011221001222
4232333312121
511123221103
61120021425
7206501546
oct56776631
925157058
1012320153
116a5534a
124161875
132724941
1418c9bcd
151135638
hexbbfd99

12320153 has 4 divisors (see below), whose sum is σ = 12353040. Its totient is φ = 12287268.

The previous prime is 12320141. The next prime is 12320159. The reversal of 12320153 is 35102321.

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: 35102321 = 340710303.

It is a cyclic number.

It is not a de Polignac number, because 12320153 - 26 = 12320089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15875 + ... + 16632.

It is an arithmetic number, because the mean of its divisors is an integer number (3088260).

Almost surely, 212320153 is an apocalyptic number.

It is an amenable number.

12320153 is a deficient number, since it is larger than the sum of its proper divisors (32887).

12320153 is an equidigital number, since it uses as much as digits as its factorization.

12320153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32886.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 12320153 is about 3510.0075498494. The cubic root of 12320153 is about 230.9610261391.

Adding to 12320153 its reverse (35102321), we get a palindrome (47422474).

The spelling of 12320153 in words is "twelve million, three hundred twenty thousand, one hundred fifty-three".

Divisors: 1 379 32507 12320153