Search a number
-
+
31513241411 = 174394222597
BaseRepresentation
bin11101010110010101…
…011110011101000011
310000100012201112100022
4131112111132131003
51004014342211121
622251010044055
72163633063251
oct352625363503
9100305645308
1031513241411
1112401448773
12613587962b
132c82a42412
14174d3d75d1
15c468dbaab
hex75655e743

31513241411 has 8 divisors (see below), whose sum is σ = 33442976160. Its totient is φ = 29591952768.

The previous prime is 31513241387. The next prime is 31513241423. The reversal of 31513241411 is 11414231513.

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

It is not a de Polignac number, because 31513241411 - 214 = 31513225027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31515241411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103836 + ... + 2118761.

It is an arithmetic number, because the mean of its divisors is an integer number (4180372020).

Almost surely, 231513241411 is an apocalyptic number.

31513241411 is a deficient number, since it is larger than the sum of its proper divisors (1929734749).

31513241411 is a wasteful number, since it uses less digits than its factorization.

31513241411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223053.

The product of its digits is 1440, while the sum is 26.

Adding to 31513241411 its reverse (11414231513), we get a palindrome (42927472924).

The spelling of 31513241411 in words is "thirty-one billion, five hundred thirteen million, two hundred forty-one thousand, four hundred eleven".

Divisors: 1 17 439 7463 4222597 71784149 1853720083 31513241411