Search a number
-
+
31104323401 = 233161715157
BaseRepresentation
bin11100111101111101…
…100100111101001001
32222021201021100021211
4130331331210331021
51002200201322101
622142241333121
72150536246414
oct347575447511
988251240254
1031104323401
11122116415a8
1260409371a1
132c190ca8b8
141710d90b7b
15c20a65c51
hex73df64f49

31104323401 has 16 divisors (see below), whose sum is σ = 34052963328. Its totient is φ = 28320177600.

The previous prime is 31104323399. The next prime is 31104323413. The reversal of 31104323401 is 10432340113.

It is a cyclic number.

It is not a de Polignac number, because 31104323401 - 21 = 31104323399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31104323441) 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, 314086 + ... + 401071.

It is an arithmetic number, because the mean of its divisors is an integer number (2128310208).

Almost surely, 231104323401 is an apocalyptic number.

31104323401 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31104323401 is a deficient number, since it is larger than the sum of its proper divisors (2948639927).

31104323401 is a wasteful number, since it uses less digits than its factorization.

31104323401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715272.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31104323401 its reverse (10432340113), we get a palindrome (41536663514).

The spelling of 31104323401 in words is "thirty-one billion, one hundred four million, three hundred twenty-three thousand, four hundred one".

Divisors: 1 23 31 61 713 1403 1891 43493 715157 16448611 22169867 43624577 509906941 1003365271 1352361887 31104323401