Search a number
-
+
31103342055 = 3255399128021
BaseRepresentation
bin11100111101111001…
…110101010111100111
32222021122102111010200
4130331321311113213
51002144423421210
622142204321543
72150525021352
oct347571652747
988248374120
1031103342055
1112211031275
1260405432b3
132c18b46016
141710bb7299
15c209200c0
hex73de755e7

31103342055 has 24 divisors (see below), whose sum is σ = 53922866400. Its totient is φ = 16585247040.

The previous prime is 31103341993. The next prime is 31103342087. The reversal of 31103342055 is 55024330113.

31103342055 is a `hidden beast` number, since 311 + 0 + 3 + 342 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 31103342055 - 221 = 31101244903 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178945 + ... + 306965.

It is an arithmetic number, because the mean of its divisors is an integer number (2246786100).

Almost surely, 231103342055 is an apocalyptic number.

31103342055 is a deficient number, since it is larger than the sum of its proper divisors (22819524345).

31103342055 is a wasteful number, since it uses less digits than its factorization.

31103342055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133431 (or 133428 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 31103342055 its reverse (55024330113), we get a palindrome (86127672168).

The spelling of 31103342055 in words is "thirty-one billion, one hundred three million, three hundred forty-two thousand, fifty-five".

Divisors: 1 3 5 9 15 45 5399 16197 26995 48591 80985 128021 242955 384063 640105 1152189 1920315 5760945 691185379 2073556137 3455926895 6220668411 10367780685 31103342055