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12144442001 = 47973078677
BaseRepresentation
bin10110100111101110…
…10111101010010001
31011100100220120112012
423103313113222101
5144332434121001
65325025312305
7606644024306
oct132367275221
934310816465
1012144442001
11517224802a
12242b195695
1311b7068973
14832c9b0ad
154b12a32bb
hex2d3dd7a91

12144442001 has 16 divisors (see below), whose sum is σ = 12572964096. Its totient is φ = 11723844096.

The previous prime is 12144441989. The next prime is 12144442007. The reversal of 12144442001 is 10024444121.

It is a cyclic number.

It is not a de Polignac number, because 12144442001 - 214 = 12144425617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12144442007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395275 + ... + 1403951.

It is an arithmetic number, because the mean of its divisors is an integer number (785810256).

Almost surely, 212144442001 is an apocalyptic number.

It is an amenable number.

12144442001 is a deficient number, since it is larger than the sum of its proper divisors (428522095).

12144442001 is an equidigital number, since it uses as much as digits as its factorization.

12144442001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9128.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 12144442001 its reverse (10024444121), we get a palindrome (22168886122).

The spelling of 12144442001 in words is "twelve billion, one hundred forty-four million, four hundred forty-two thousand, one".

Divisors: 1 47 97 307 4559 8677 14429 29779 407819 841669 1399613 2663839 39558443 125200433 258392383 12144442001