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13001120 = 255118389
BaseRepresentation
bin110001100110…
…000110100000
3220110112011222
4301212012200
511312013440
61142354212
7215336066
oct61460640
926415158
1013001120
11737aa30
12442b968
132902892
141a26036
15121c2b5
hexc661a0

13001120 has 96 divisors (see below), whose sum is σ = 34292160. Its totient is φ = 4618240.

The previous prime is 13001119. The next prime is 13001129. The reversal of 13001120 is 2110031.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 13001098 and 13001107.

It is not an unprimeable number, because it can be changed into a prime (13001129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146036 + ... + 146124.

It is an arithmetic number, because the mean of its divisors is an integer number (357210).

Almost surely, 213001120 is an apocalyptic number.

13001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13001120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17146080).

13001120 is an abundant number, since it is smaller than the sum of its proper divisors (21291040).

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

13001120 is a wasteful number, since it uses less digits than its factorization.

13001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 13001120 is about 3605.7065881738. The cubic root of 13001120 is about 235.1402211291.

Adding to 13001120 its reverse (2110031), we get a palindrome (15111151).

It can be divided in two parts, 130011 and 20, that added together give a palindrome (130031).

The spelling of 13001120 in words is "thirteen million, one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 83 88 89 110 160 166 176 178 220 332 352 356 415 440 445 664 712 830 880 890 913 979 1328 1424 1660 1760 1780 1826 1958 2656 2848 3320 3560 3652 3916 4565 4895 6640 7120 7304 7387 7832 9130 9790 13280 14240 14608 14774 15664 18260 19580 29216 29548 31328 36520 36935 39160 59096 73040 73870 78320 81257 118192 146080 147740 156640 162514 236384 295480 325028 406285 590960 650056 812570 1181920 1300112 1625140 2600224 3250280 6500560 13001120