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13011013230 = 23519791132557
BaseRepresentation
bin11000001111000010…
…00100111001101110
31020120202111221202220
430013201010321232
5203121304410410
65551023100210
7640265534115
oct140741047156
936522457686
1013011013230
1155774178a6
122631441666
1312c47597c7
148b5dd4c7c
155123ca070
hex307844e6e

13011013230 has 128 divisors (see below), whose sum is σ = 33593702400. Its totient is φ = 3215407104.

The previous prime is 13011013199. The next prime is 13011013261. The reversal of 13011013230 is 3231011031.

It is an interprime number because it is at equal distance from previous prime (13011013199) and next prime (13011013261).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5087112 + ... + 5089668.

It is an arithmetic number, because the mean of its divisors is an integer number (262450800).

Almost surely, 213011013230 is an apocalyptic number.

13011013230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13011013230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16796851200).

13011013230 is an abundant number, since it is smaller than the sum of its proper divisors (20582689170).

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

13011013230 is a wasteful number, since it uses less digits than its factorization.

13011013230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 13011013230 its reverse (3231011031), we get a palindrome (16242024261).

The spelling of 13011013230 in words is "thirteen billion, eleven million, thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 79 95 113 114 158 190 226 237 285 339 395 474 565 570 678 790 1130 1185 1501 1695 2147 2370 2557 3002 3390 4294 4503 5114 6441 7505 7671 8927 9006 10735 12785 12882 15010 15342 17854 21470 22515 25570 26781 32205 38355 44635 45030 48583 53562 64410 76710 89270 97166 133905 145749 169613 202003 242915 267810 288941 291498 339226 404006 485830 508839 577882 606009 728745 848065 866823 1010015 1017678 1212018 1444705 1457490 1696130 1733646 2020030 2544195 2889410 3030045 3838057 4334115 5088390 5489879 6060090 7676114 8668230 10979758 11514171 16469637 19190285 22826339 23028342 27449395 32939274 38380570 45652678 54898790 57570855 68479017 82348185 114131695 115141710 136958034 164696370 228263390 342395085 433700441 684790170 867400882 1301101323 2168502205 2602202646 4337004410 6505506615 13011013230