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31106003441 = 79393746879
BaseRepresentation
bin11100111110000011…
…111111000111110001
32222021211102200212112
4130332003333013301
51002201114102231
622142341335105
72150556444452
oct347603770761
988254380775
1031106003441
1112212589867
126041407495
132c195684c6
1417112ab129
15c20c9892b
hex73e0ff1f1

31106003441 has 4 divisors (see below), whose sum is σ = 31499750400. Its totient is φ = 30712256484.

The previous prime is 31106003437. The next prime is 31106003443. The reversal of 31106003441 is 14430060113.

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 31106003441 - 22 = 31106003437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31106003443) 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, 196873361 + ... + 196873518.

It is an arithmetic number, because the mean of its divisors is an integer number (7874937600).

Almost surely, 231106003441 is an apocalyptic number.

It is an amenable number.

31106003441 is a deficient number, since it is larger than the sum of its proper divisors (393746959).

31106003441 is an equidigital number, since it uses as much as digits as its factorization.

31106003441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393746958.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31106003441 its reverse (14430060113), we get a palindrome (45536063554).

The spelling of 31106003441 in words is "thirty-one billion, one hundred six million, three thousand, four hundred forty-one".

Divisors: 1 79 393746879 31106003441