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12175210553 = 111106837323
BaseRepresentation
bin10110101011011001…
…01111100000111001
31011102111210210001012
423111230233200321
5144413323214203
65332045003305
7610466403452
oct132554574071
934374723035
1012175210553
115188652990
122439553535
1311c054c6cc
14836dca129
154b3d2ebd8
hex2d5b2f839

12175210553 has 4 divisors (see below), whose sum is σ = 13282047888. Its totient is φ = 11068373220.

The previous prime is 12175210547. The next prime is 12175210561. The reversal of 12175210553 is 35501257121.

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 12175210553 - 212 = 12175206457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12175210543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553418651 + ... + 553418672.

It is an arithmetic number, because the mean of its divisors is an integer number (3320511972).

Almost surely, 212175210553 is an apocalyptic number.

It is an amenable number.

12175210553 is a deficient number, since it is larger than the sum of its proper divisors (1106837335).

12175210553 is a wasteful number, since it uses less digits than its factorization.

12175210553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106837334.

The product of its (nonzero) digits is 10500, while the sum is 32.

Adding to 12175210553 its reverse (35501257121), we get a palindrome (47676467674).

The spelling of 12175210553 in words is "twelve billion, one hundred seventy-five million, two hundred ten thousand, five hundred fifty-three".

Divisors: 1 11 1106837323 12175210553