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105297980112 = 243213530310607
BaseRepresentation
bin110001000010000111…
…1111010101011010000
3101001210101201121200100
41202010033322223100
53211122240330422
6120212341052400
710415245030443
oct1420417725320
9331711647610
10105297980112
1140724a67a66
12184a80b7100
139c1130c910
14514c92b65a
152b144017ac
hex18843faad0

105297980112 has 120 divisors (see below), whose sum is σ = 317446182144. Its totient is φ = 32390214912.

The previous prime is 105297980087. The next prime is 105297980113. The reversal of 105297980112 is 211089792501.

105297980112 is a `hidden beast` number, since 1 + 0 + 529 + 7 + 9 + 8 + 0 + 112 = 666.

It is a super-2 number, since 2×1052979801122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105297980113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9921913 + ... + 9932519.

Almost surely, 2105297980112 is an apocalyptic number.

105297980112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105297980112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158723091072).

105297980112 is an abundant number, since it is smaller than the sum of its proper divisors (212148202032).

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

105297980112 is a wasteful number, since it uses less digits than its factorization.

105297980112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15937 (or 15928 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The spelling of 105297980112 in words is "one hundred five billion, two hundred ninety-seven million, nine hundred eighty thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 234 312 468 624 936 1872 5303 10606 10607 15909 21212 21214 31818 31821 42424 42428 47727 63636 63642 68939 84848 84856 95454 95463 127272 127284 137878 137891 169712 190908 190926 206817 254544 254568 275756 275782 381816 381852 413634 413673 509136 551512 551564 620451 763632 763704 827268 827346 1103024 1103128 1240902 1241019 1527408 1654536 1654692 2206256 2481804 2482038 3309072 3309384 4963608 4964076 6618768 9927216 9928152 19856304 56248921 112497842 168746763 224995684 337493526 449991368 506240289 674987052 731235973 899982736 1012480578 1349974104 1462471946 2024961156 2193707919 2699948208 2924943892 4049922312 4387415838 5849887784 6581123757 8099844624 8774831676 11699775568 13162247514 17549663352 26324495028 35099326704 52648990056 105297980112