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12443130423100 = 22521321145363217
BaseRepresentation
bin1011010100010010010001…
…0111100110011100111100
31122001112220011010222111001
42311010210113212130330
53112332012342014400
642244143432540044
72422662241322206
oct265044427463474
948045804128431
1012443130423100
113a68113806473
12148b68b251624
136c34c77cac30
14310371dc5776
15168a1b058a6a
hexb51245e673c

12443130423100 has 72 divisors (see below), whose sum is σ = 29216452732208. Its totient is φ = 4572612172800.

The previous prime is 12443130423077. The next prime is 12443130423127. The reversal of 12443130423100 is 132403134421.

It is a happy number.

12443130423100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×124431304231002 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22407309 + ... + 22955908.

Almost surely, 212443130423100 is an apocalyptic number.

12443130423100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12443130423100 is an abundant number, since it is smaller than the sum of its proper divisors (16773322309108).

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

12443130423100 is a wasteful number, since it uses less digits than its factorization.

12443130423100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45363455 (or 45363448 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 12443130423100 its reverse (132403134421), we get a palindrome (12575533557521).

The spelling of 12443130423100 in words is "twelve trillion, four hundred forty-three billion, one hundred thirty million, four hundred twenty-three thousand, one hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 211 260 325 422 650 844 1055 1300 2110 2743 4220 5275 5486 10550 10972 13715 21100 27430 54860 68575 137150 274300 45363217 90726434 181452868 226816085 453632170 589721821 907264340 1134080425 1179443642 2268160850 2358887284 2948609105 4536321700 5897218210 9571638787 11794436420 14743045525 19143277574 29486091050 38286555148 47858193935 58972182100 95716387870 124431304231 191432775740 239290969675 248862608462 478581939350 497725216924 622156521155 957163878700 1244313042310 2488626084620 3110782605775 6221565211550 12443130423100