Search a number
-
+
8381409100900 = 2252117321429811
BaseRepresentation
bin111100111110111001011…
…1010011000010001100100
31002200020212210220020122121
41321331302322120101210
52044310111212212100
625454211032435324
71523352062612233
oct171756272302144
932606783806577
108381409100900
112741598a30a10
12b34458b48b44
1348a495771894
1420d93b75ab1a
15e804668451a
hex79f72e98464

8381409100900 has 108 divisors (see below), whose sum is σ = 20116614110544. Its totient is φ = 3006032544000.

The previous prime is 8381409100871. The next prime is 8381409100907. The reversal of 8381409100900 is 90019041838.

It is a super-3 number, since 3×83814091009003 (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8381409100907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5146995 + ... + 6576805.

It is an arithmetic number, because the mean of its divisors is an integer number (186264945468).

Almost surely, 28381409100900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8381409100900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10058307055272).

8381409100900 is an abundant number, since it is smaller than the sum of its proper divisors (11735205009644).

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

8381409100900 is a wasteful number, since it uses less digits than its factorization.

8381409100900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429982 (or 1429902 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 8381409100900 in words is "eight trillion, three hundred eighty-one billion, four hundred nine million, one hundred thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 73 100 110 146 220 275 292 365 550 730 803 1100 1460 1606 1825 3212 3650 4015 5329 7300 8030 10658 16060 20075 21316 26645 40150 53290 58619 80300 106580 117238 133225 234476 266450 293095 532900 586190 1172380 1429811 1465475 2859622 2930950 5719244 5861900 7149055 14298110 15727921 28596220 31455842 35745275 62911684 71490550 78639605 104376203 142981100 157279210 208752406 314558420 393198025 417504812 521881015 786396050 1043762030 1148138233 1572792100 2087524060 2296276466 2609405075 4592552932 5218810150 5740691165 7619462819 10437620300 11481382330 15238925638 22962764660 28703455825 30477851276 38097314095 57406911650 76194628190 83814091009 114813823300 152389256380 167628182018 190486570475 335256364036 380973140950 419070455045 761946281900 838140910090 1676281820180 2095352275225 4190704550450 8381409100900