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13186125552 = 2431937938149
BaseRepresentation
bin11000100011111010…
…00100111011110000
31021000222000120201110
430101331010323300
5204001122004202
610020240233320
7644523134505
oct142175047360
937028016643
1013186125552
115657251326
12268000b840
131321b0ba72
148d13794ac
1552296a26c
hex311f44ef0

13186125552 has 80 divisors (see below), whose sum is σ = 35952560000. Its totient is φ = 4152943872.

The previous prime is 13186125529. The next prime is 13186125613. The reversal of 13186125552 is 25552168131.

13186125552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13186125552.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 326574 + ... + 364722.

It is an arithmetic number, because the mean of its divisors is an integer number (449407000).

Almost surely, 213186125552 is an apocalyptic number.

13186125552 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 13186125552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17976280000).

13186125552 is an abundant number, since it is smaller than the sum of its proper divisors (22766434448).

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

13186125552 is a wasteful number, since it uses less digits than its factorization.

13186125552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38558 (or 38552 counting only the distinct ones).

The product of its digits is 72000, while the sum is 39.

The spelling of 13186125552 in words is "thirteen billion, one hundred eighty-six million, one hundred twenty-five thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 379 456 758 912 1137 1516 2274 3032 4548 6064 7201 9096 14402 18192 21603 28804 38149 43206 57608 76298 86412 114447 115216 152596 172824 228894 305192 345648 457788 610384 724831 915576 1449662 1831152 2174493 2899324 4348986 5798648 8697972 11597296 14458471 17395944 28916942 34791888 43375413 57833884 86750826 115667768 173501652 231335536 274710949 347003304 549421898 694006608 824132847 1098843796 1648265694 2197687592 3296531388 4395375184 6593062776 13186125552