Search a number
-
+
31422201244 = 2271122221473
BaseRepresentation
bin11101010000111010…
…001011110110011100
310000002212102012201021
4131100322023312130
51003323040414434
622233554453524
72161446206110
oct352072136634
9100085365637
1031422201244
1112365016965
12610b2942a4
132c69c17bb5
141741299740
15c3d906cb4
hex750e8bd9c

31422201244 has 12 divisors (see below), whose sum is σ = 62844402544. Its totient is φ = 13466657664.

The previous prime is 31422201241. The next prime is 31422201301. The reversal of 31422201244 is 44210222413.

31422201244 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422201241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561110709 + ... + 561110764.

Almost surely, 231422201244 is an apocalyptic number.

It is an amenable number.

31422201244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31422201244 is a wasteful number, since it uses less digits than its factorization.

31422201244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122221484 (or 1122221482 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 31422201244 its reverse (44210222413), we get a palindrome (75632423657).

The spelling of 31422201244 in words is "thirty-one billion, four hundred twenty-two million, two hundred one thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 1122221473 2244442946 4488885892 7855550311 15711100622 31422201244