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13445250012 = 22328319992251
BaseRepresentation
bin11001000010110011…
…00011101111011100
31021201000121110122200
430201121203233130
5210013441000022
610102054211500
7654120511425
oct144131435734
937630543580
1013445250012
11577a547377
122732953b90
1313636c764c
1491794c64c
1553a5a2bac
hex321663bdc

13445250012 has 72 divisors (see below), whose sum is σ = 34428576000. Its totient is φ = 4423572000.

The previous prime is 13445249981. The next prime is 13445250017. The reversal of 13445250012 is 21005254431.

13445250012 is a `hidden beast` number, since 134 + 4 + 525 + 0 + 0 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445250017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5971887 + ... + 5974137.

Almost surely, 213445250012 is an apocalyptic number.

13445250012 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 13445250012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17214288000).

13445250012 is an abundant number, since it is smaller than the sum of its proper divisors (20983325988).

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

13445250012 is a wasteful number, since it uses less digits than its factorization.

13445250012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343 (or 4338 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 13445250012 in words is "thirteen billion, four hundred forty-five million, two hundred fifty thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 83 166 249 332 498 747 996 1494 1999 2251 2988 3998 4502 5997 6753 7996 9004 11994 13506 17991 20259 23988 27012 35982 40518 71964 81036 165917 186833 331834 373666 497751 560499 663668 747332 995502 1120998 1493253 1681497 1991004 2241996 2986506 3362994 4499749 5973012 6725988 8999498 13499247 17998996 26998494 40497741 53996988 80995482 161990964 373479167 746958334 1120437501 1493916668 2240875002 3361312503 4481750004 6722625006 13445250012