Search a number
-
+
31110102130122 = 2322959597896801
BaseRepresentation
bin1110001001011011000101…
…00101100001110111001010
311002011002121111200220112100
413010231202211201313022
513034201442121130442
6150055441132254230
76360426221662161
oct704554245416712
9132132544626470
1031110102130122
119a047a1682a14
1235a541a311376
131448893112bc2
14797a463a03d8
1538e3a25ad84c
hex1c4b62961dca

31110102130122 has 24 divisors (see below), whose sum is σ = 69729539258340. Its totient is φ = 10012446662400.

The previous prime is 31110102130091. The next prime is 31110102130171. The reversal of 31110102130122 is 22103120101113.

31110102130122 is a `hidden beast` number, since 311 + 1 + 0 + 10 + 21 + 301 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30920728330881 + 189373799241 = 5560641^2 + 435171^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31110102130095 and 31110102130104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29798947879 + ... + 29798948922.

Almost surely, 231110102130122 is an apocalyptic number.

31110102130122 is an abundant number, since it is smaller than the sum of its proper divisors (38619437128218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31110102130122 is a wasteful number, since it uses less digits than its factorization.

31110102130122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59597896838 (or 59597896835 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 31110102130122 its reverse (22103120101113), we get a palindrome (53213222231235).

The spelling of 31110102130122 in words is "thirty-one trillion, one hundred ten billion, one hundred two million, one hundred thirty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 29 58 87 174 261 522 59597896801 119195793602 178793690403 357587380806 536381071209 1072762142418 1728339007229 3456678014458 5185017021687 10370034043374 15555051065061 31110102130122