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13112323120 = 2451327194637
BaseRepresentation
bin11000011011000111…
…00010110000110000
31020211211011000211001
430031203202300300
5203323223314440
610005042331344
7642635623201
oct141543426060
936754130731
1013112323120
115619623486
12265b359b54
13130c73b5a0
148c56475a8
1551b23cb9a
hex30d8e2c30

13112323120 has 80 divisors (see below), whose sum is σ = 32850397440. Its totient is φ = 4838648832.

The previous prime is 13112323109. The next prime is 13112323139. The reversal of 13112323120 is 2132321131.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2825442 + ... + 2830078.

It is an arithmetic number, because the mean of its divisors is an integer number (410629968).

Almost surely, 213112323120 is an apocalyptic number.

13112323120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112323120 is an abundant number, since it is smaller than the sum of its proper divisors (19738074320).

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

13112323120 is a wasteful number, since it uses less digits than its factorization.

13112323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7382 (or 7376 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13112323120 its reverse (2132321131), we get a palindrome (15244644251).

The spelling of 13112323120 in words is "thirteen billion, one hundred twelve million, three hundred twenty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 2719 4637 5438 9274 10876 13595 18548 21752 23185 27190 35347 37096 43504 46370 54380 60281 70694 74192 92740 108760 120562 141388 176735 185480 217520 241124 282776 301405 353470 370960 482248 565552 602810 706940 964496 1205620 1413880 2411240 2827760 4822480 12608003 25216006 50432012 63040015 100864024 126080030 163904039 201728048 252160060 327808078 504320120 655616156 819520195 1008640240 1311232312 1639040390 2622464624 3278080780 6556161560 13112323120