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31032143241 = 3118933105269
BaseRepresentation
bin11100111001101010…
…001110110110001001
32222002200110012201120
4130321222032312021
51002023212040431
622131142305453
72146001602551
oct347152166611
988080405646
1031032143241
1112184921580
126020728289
132c07177948
141705562161
15c19559196
hex739a8ed89

31032143241 has 16 divisors (see below), whose sum is σ = 45143144640. Its totient is φ = 18805075520.

The previous prime is 31032143227. The next prime is 31032143257. The reversal of 31032143241 is 14234123013.

It is a happy number.

It is not a de Polignac number, because 31032143241 - 211 = 31032141193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31032143141) 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 15 ways as a sum of consecutive naturals, for example, 242155 + ... + 347423.

It is an arithmetic number, because the mean of its divisors is an integer number (2821446540).

Almost surely, 231032143241 is an apocalyptic number.

It is an amenable number.

31032143241 is a deficient number, since it is larger than the sum of its proper divisors (14111001399).

31032143241 is a wasteful number, since it uses less digits than its factorization.

31032143241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114216.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31032143241 its reverse (14234123013), we get a palindrome (45266266254).

The spelling of 31032143241 in words is "thirty-one billion, thirty-two million, one hundred forty-three thousand, two hundred forty-one".

Divisors: 1 3 11 33 8933 26799 98263 105269 294789 315807 1157959 3473877 940367977 2821103931 10344047747 31032143241