Search a number
-
+
31422211124 = 2253148217977
BaseRepresentation
bin11101010000111010…
…001110010000110100
310000002212102201021012
4131100322032100310
51003323041223444
622233555011352
72161446246653
oct352072162064
9100085381235
1031422211124
1112365023327
12610b299b58
132c69c1c545
14174129d19a
15c3d909b9e
hex750e8e434

31422211124 has 12 divisors (see below), whose sum is σ = 56026395684. Its totient is φ = 15414669504.

The previous prime is 31422211087. The next prime is 31422211157. The reversal of 31422211124 is 42111222413.

It can be written as a sum of positive squares in 2 ways, for example, as 14888880400 + 16533330724 = 122020^2 + 128582^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31422211124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74108777 + ... + 74109200.

It is an arithmetic number, because the mean of its divisors is an integer number (4668866307).

Almost surely, 231422211124 is an apocalyptic number.

It is an amenable number.

31422211124 is a deficient number, since it is larger than the sum of its proper divisors (24604184560).

31422211124 is a wasteful number, since it uses less digits than its factorization.

31422211124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148218034 (or 148218032 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

Adding to 31422211124 its reverse (42111222413), we get a palindrome (73533433537).

The spelling of 31422211124 in words is "thirty-one billion, four hundred twenty-two million, two hundred eleven thousand, one hundred twenty-four".

Divisors: 1 2 4 53 106 212 148217977 296435954 592871908 7855552781 15711105562 31422211124