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13012313100 = 2235243374377
BaseRepresentation
bin11000001111001100…
…00010010000001100
31020120211221222212020
430013212002100030
5203122123004400
65551111010140
7640312556613
oct140746022014
936524858766
1013012313100
115578125476
122631969950
1312c4ac3367
148b625287a
155125852a0
hex30798240c

13012313100 has 36 divisors (see below), whose sum is σ = 37648960104. Its totient is φ = 3469950080.

The previous prime is 13012313099. The next prime is 13012313101. The reversal of 13012313100 is 131321031.

It is an interprime number because it is at equal distance from previous prime (13012313099) and next prime (13012313101).

It is a super-2 number, since 2×130123131002 (a number of 21 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13012313100.

It is not an unprimeable number, because it can be changed into a prime (13012313101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21686889 + ... + 21687488.

Almost surely, 213012313100 is an apocalyptic number.

13012313100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13012313100 is an abundant number, since it is smaller than the sum of its proper divisors (24636647004).

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

13012313100 is a wasteful number, since it uses less digits than its factorization.

13012313100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43374394 (or 43374387 counting only the distinct ones).

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

Adding to 13012313100 its reverse (131321031), we get a palindrome (13143634131).

The spelling of 13012313100 in words is "thirteen billion, twelve million, three hundred thirteen thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 43374377 86748754 130123131 173497508 216871885 260246262 433743770 520492524 650615655 867487540 1084359425 1301231310 2168718850 2602462620 3253078275 4337437700 6506156550 13012313100