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12142503241 = 111103863931
BaseRepresentation
bin10110100111011111…
…11110010101001001
31011100020021002001021
423103233332111021
5144331440100431
65324515552441
7606621401041
oct132357762511
934306232037
1012142503241
115171143450
12242a5bb721
1311b683a37b
14832914721
154b101db11
hex2d3bfe549

12142503241 has 4 divisors (see below), whose sum is σ = 13246367184. Its totient is φ = 11038639300.

The previous prime is 12142503227. The next prime is 12142503259. The reversal of 12142503241 is 14230524121.

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 12142503241 - 25 = 12142503209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12142503221) 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, 551931955 + ... + 551931976.

It is an arithmetic number, because the mean of its divisors is an integer number (3311591796).

Almost surely, 212142503241 is an apocalyptic number.

12142503241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12142503241 is a deficient number, since it is larger than the sum of its proper divisors (1103863943).

12142503241 is a wasteful number, since it uses less digits than its factorization.

12142503241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103863942.

The product of its (nonzero) digits is 1920, while the sum is 25.

The spelling of 12142503241 in words is "twelve billion, one hundred forty-two million, five hundred three thousand, two hundred forty-one".

Divisors: 1 11 1103863931 12142503241