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20112244124 = 2277163116033
BaseRepresentation
bin10010101110110010…
…000111110110011100
31220220122201212020112
4102232302013312130
5312142213302444
613123415105152
71311254153150
oct225662076634
956818655215
1020112244124
118590923765
123a936721b8
131b86a1758b
14d8b183060
157caa3d69e
hex4aec87d9c

20112244124 has 48 divisors (see below), whose sum is σ = 40858223616. Its totient is φ = 8484134400.

The previous prime is 20112244121. The next prime is 20112244127. The reversal of 20112244124 is 42144221102.

It is an interprime number because it is at equal distance from previous prime (20112244121) and next prime (20112244127).

It is a self number, because there is not a number n which added to its sum of digits gives 20112244124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112244121) 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 15 ways as a sum of consecutive naturals, for example, 1246412 + ... + 1262444.

It is an arithmetic number, because the mean of its divisors is an integer number (851212992).

Almost surely, 220112244124 is an apocalyptic number.

It is an amenable number.

20112244124 is an abundant number, since it is smaller than the sum of its proper divisors (20745979492).

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

20112244124 is a wasteful number, since it uses less digits than its factorization.

20112244124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16746 (or 16744 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 20112244124 its reverse (42144221102), we get a palindrome (62256465226).

The spelling of 20112244124 in words is "twenty billion, one hundred twelve million, two hundred forty-four thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 71 142 284 497 631 994 1262 1988 2524 4417 8834 16033 17668 32066 44801 64132 89602 112231 179204 224462 313607 448924 627214 1138343 1254428 2276686 4553372 7968401 10116823 15936802 20233646 31873604 40467292 70817761 141635522 283271044 718294433 1436588866 2873177732 5028061031 10056122062 20112244124