Search a number
-
+
31124344413 = 317610281263
BaseRepresentation
bin11100111111001001…
…111100111001011101
32222100002221111221210
4130333021330321131
51002220313010123
622144234415033
72151201363621
oct347711747135
988302844853
1031124344413
1112221976698
126047591479
132c202ba756
1417138c3181
15c226bce93
hex73f27ce5d

31124344413 has 8 divisors (see below), whose sum is σ = 43940251008. Its totient is φ = 19529000384.

The previous prime is 31124344367. The next prime is 31124344417. The reversal of 31124344413 is 31444342113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31124344413 - 28 = 31124344157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31124344417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305140581 + ... + 305140682.

It is an arithmetic number, because the mean of its divisors is an integer number (5492531376).

Almost surely, 231124344413 is an apocalyptic number.

It is an amenable number.

31124344413 is a deficient number, since it is larger than the sum of its proper divisors (12815906595).

31124344413 is a wasteful number, since it uses less digits than its factorization.

31124344413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610281283.

The product of its digits is 13824, while the sum is 30.

Adding to 31124344413 its reverse (31444342113), we get a palindrome (62568686526).

The spelling of 31124344413 in words is "thirty-one billion, one hundred twenty-four million, three hundred forty-four thousand, four hundred thirteen".

Divisors: 1 3 17 51 610281263 1830843789 10374781471 31124344413