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13003103112 = 2331928515577
BaseRepresentation
bin11000001110000101…
…11001101110001000
31020120012122002010120
430013002321232020
5203112243244422
65550141343240
7640141360416
oct140702715610
936505562116
1013003103112
115572a0490a
12262a867b20
1312c2c1a26c
148b4d362b6
1551186645c
hex3070b9b88

13003103112 has 32 divisors (see below), whose sum is σ = 34218693600. Its totient is φ = 4106242944.

The previous prime is 13003103111. The next prime is 13003103129. The reversal of 13003103112 is 21130130031.

It is a junction number, because it is equal to n+sod(n) for n = 13003103091 and 13003103100.

It is not an unprimeable number, because it can be changed into a prime (13003103111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14257333 + ... + 14258244.

It is an arithmetic number, because the mean of its divisors is an integer number (1069334175).

Almost surely, 213003103112 is an apocalyptic number.

13003103112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13003103112 is an abundant number, since it is smaller than the sum of its proper divisors (21215590488).

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

13003103112 is a wasteful number, since it uses less digits than its factorization.

13003103112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28515605 (or 28515601 counting only the distinct ones).

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

Adding to 13003103112 its reverse (21130130031), we get a palindrome (34133233143).

The spelling of 13003103112 in words is "thirteen billion, three million, one hundred three thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 28515577 57031154 85546731 114062308 171093462 228124616 342186924 541795963 684373848 1083591926 1625387889 2167183852 3250775778 4334367704 6501551556 13003103112