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13232331112 = 23711132371843
BaseRepresentation
bin11000101001011010…
…10101100101101000
31021011011222001211111
430110231111211220
5204044434043422
610025010440104
7645623646550
oct142455254550
937134861744
1013232331112
115680340240
122693593034
13132b569030
148d7566160
15526a45a77
hex314b55968

13232331112 has 128 divisors (see below), whose sum is σ = 34761000960. Its totient is φ = 4551909120.

The previous prime is 13232331083. The next prime is 13232331169. The reversal of 13232331112 is 21113323231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148263 + ... + 220105.

It is an arithmetic number, because the mean of its divisors is an integer number (271570320).

Almost surely, 213232331112 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 13232331112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17380500480).

13232331112 is an abundant number, since it is smaller than the sum of its proper divisors (21528669848).

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

13232331112 is a wasteful number, since it uses less digits than its factorization.

13232331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71903 (or 71899 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 13232331112 its reverse (21113323231), we get a palindrome (34345654343).

The spelling of 13232331112 in words is "thirteen billion, two hundred thirty-two million, three hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 11 13 14 22 23 26 28 44 46 52 56 77 88 91 92 104 143 154 161 182 184 253 286 299 308 322 364 506 572 598 616 644 728 1001 1012 1144 1196 1288 1771 2002 2024 2093 2392 3289 3542 4004 4186 6578 7084 8008 8372 13156 14168 16744 23023 26312 46046 71843 92092 143686 184184 287372 502901 574744 790273 933959 1005802 1580546 1652389 1867918 2011604 3161092 3304778 3735836 4023208 5531911 6322184 6537713 6609556 7471672 10273549 11063822 11566723 13075426 13219112 18176279 20547098 21481057 22127644 23133446 26150852 36352558 41094196 42962114 44255288 46266892 52301704 71914843 72705116 82188392 85924228 92533784 127233953 143829686 145410232 150367399 171848456 236291627 254467906 287659372 300734798 472583254 508935812 575318744 601469596 945166508 1017871624 1202939192 1654041389 1890333016 3308082778 6616165556 13232331112