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22112030031 = 3721332533557
BaseRepresentation
bin10100100101111110…
…101100110101001111
32010002000200111210020
4110211332230311033
5330241134430111
614054053313223
71411646103600
oct244576546517
963060614706
1022112030031
119417734493
124351335813
132115118350
1410da9c3da7
158963ac906
hex525facd4f

22112030031 has 48 divisors (see below), whose sum is σ = 36956120544. Its totient is φ = 11656624896.

The previous prime is 22112030011. The next prime is 22112030069. The reversal of 22112030031 is 13003021122.

It is not a de Polignac number, because 22112030031 - 225 = 22078475599 is a prime.

It is a super-2 number, since 2×221120300312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112030011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6214705 + ... + 6218261.

It is an arithmetic number, because the mean of its divisors is an integer number (769919178).

Almost surely, 222112030031 is an apocalyptic number.

22112030031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22112030031 is a deficient number, since it is larger than the sum of its proper divisors (14844090513).

22112030031 is a wasteful number, since it uses less digits than its factorization.

22112030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6840 (or 6833 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22112030031 its reverse (13003021122), we get a palindrome (35115051153).

The spelling of 22112030031 in words is "twenty-two billion, one hundred twelve million, thirty thousand, thirty-one".

Divisors: 1 3 7 13 21 39 49 91 147 273 637 1911 3253 3557 9759 10671 22771 24899 42289 46241 68313 74697 126867 138723 159397 174293 296023 323687 478191 522879 888069 971061 2072161 2265809 6216483 6797427 11570921 34712763 80996447 150421973 242989341 451265919 566975129 1052953811 1700925387 3158861433 7370676677 22112030031