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13111112130 = 2351725092971
BaseRepresentation
bin11000011010111101…
…11011000111000010
31020211201212111122120
430031132323013002
5203322421042010
610005000345110
7642622420464
oct141536730702
936751774576
1013111112130
115618976666
12265aa75196
13130c40631c
148c5410134
1551b09de70
hex30d7bb1c2

13111112130 has 96 divisors (see below), whose sum is σ = 33503474880. Its totient is φ = 3283061760.

The previous prime is 13111112129. The next prime is 13111112149. The reversal of 13111112130 is 3121111131.

It is a super-2 number, since 2×131111121302 (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 an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4411545 + ... + 4414515.

It is an arithmetic number, because the mean of its divisors is an integer number (348994530).

Almost surely, 213111112130 is an apocalyptic number.

13111112130 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 13111112130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16751737440).

13111112130 is an abundant number, since it is smaller than the sum of its proper divisors (20392362750).

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

13111112130 is a wasteful number, since it uses less digits than its factorization.

13111112130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524 (or 3507 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 13111112130 its reverse (3121111131), we get a palindrome (16232223261).

Subtracting from 13111112130 its reverse (3121111131), we obtain a palindrome (9990000999).

The spelling of 13111112130 in words is "thirteen billion, one hundred eleven million, one hundred twelve thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 289 509 510 578 867 1018 1445 1527 1734 2545 2890 2971 3054 4335 5090 5942 7635 8653 8670 8913 14855 15270 17306 17826 25959 29710 43265 44565 50507 51918 86530 89130 101014 129795 147101 151521 252535 259590 294202 303042 441303 505070 735505 757605 858619 882606 1471010 1512239 1515210 1717238 2206515 2575857 3024478 4293095 4413030 4536717 5151714 7561195 8586190 9073434 12879285 15122390 22683585 25708063 25758570 45367170 51416126 77124189 128540315 154248378 257080630 385620945 437037071 771241890 874074142 1311111213 2185185355 2622222426 4370370710 6555556065 13111112130