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31104301211 = 83374750617
BaseRepresentation
bin11100111101111101…
…011111100010011011
32222021201020012211222
4130331331133202123
51002200200114321
622142241042255
72150536124624
oct347575374233
988251205758
1031104301211
1112211626965
12604092638b
132c190c0779
141710d86a4b
15c20a5e3ab
hex73df5f89b

31104301211 has 4 divisors (see below), whose sum is σ = 31479051912. Its totient is φ = 30729550512.

The previous prime is 31104301201. The next prime is 31104301223. The reversal of 31104301211 is 11210340113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31104301211 - 26 = 31104301147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31104301211.

It is not an unprimeable number, because it can be changed into a prime (31104301201) 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, 187375226 + ... + 187375391.

It is an arithmetic number, because the mean of its divisors is an integer number (7869762978).

Almost surely, 231104301211 is an apocalyptic number.

31104301211 is a deficient number, since it is larger than the sum of its proper divisors (374750701).

31104301211 is an equidigital number, since it uses as much as digits as its factorization.

31104301211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374750700.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31104301211 its reverse (11210340113), we get a palindrome (42314641324).

The spelling of 31104301211 in words is "thirty-one billion, one hundred four million, three hundred one thousand, two hundred eleven".

Divisors: 1 83 374750617 31104301211