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12389151553 = 71917231087
BaseRepresentation
bin10111000100111001…
…10111001101000001
31011222102101002220221
423202130313031001
5200333110322203
65405210303041
7616005023242
oct134234671501
934872332827
1012389151553
115288397a29
122499127a81
13122597830c
1485759acc9
154c79deabd
hex2e2737341

12389151553 has 4 divisors (see below), whose sum is σ = 12406383360. Its totient is φ = 12371919748.

The previous prime is 12389151547. The next prime is 12389151601. The reversal of 12389151553 is 35515198321.

12389151553 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 12389151553 - 221 = 12387054401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12389151053) 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, 8614825 + ... + 8616262.

It is an arithmetic number, because the mean of its divisors is an integer number (3101595840).

Almost surely, 212389151553 is an apocalyptic number.

It is an amenable number.

12389151553 is a deficient number, since it is larger than the sum of its proper divisors (17231807).

12389151553 is an equidigital number, since it uses as much as digits as its factorization.

12389151553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17231806.

The product of its digits is 162000, while the sum is 43.

The spelling of 12389151553 in words is "twelve billion, three hundred eighty-nine million, one hundred fifty-one thousand, five hundred fifty-three".

Divisors: 1 719 17231087 12389151553