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13108620 = 2235723259
BaseRepresentation
bin110010000000…
…010110001100
3220122222122110
4302000112030
511323433440
61144544020
7216264360
oct62002614
926588573
1013108620
117443778
124482010
13293c7a5
141a532a0
15123e080
hexc8058c

13108620 has 144 divisors (see below), whose sum is σ = 44593920. Its totient is φ = 2817408.

The previous prime is 13108603. The next prime is 13108621. The reversal of 13108620 is 2680131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (13108621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222151 + ... + 222209.

It is an arithmetic number, because the mean of its divisors is an integer number (309680).

Almost surely, 213108620 is an apocalyptic number.

13108620 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 13108620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22296960).

13108620 is an abundant number, since it is smaller than the sum of its proper divisors (31485300).

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

13108620 is a wasteful number, since it uses less digits than its factorization.

13108620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 13108620 is about 3620.5828260102. The cubic root of 13108620 is about 235.7865301314.

Adding to 13108620 its reverse (2680131), we get a palindrome (15788751).

The spelling of 13108620 in words is "thirteen million, one hundred eight thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 23 28 30 35 42 46 59 60 69 70 84 92 105 115 118 138 140 161 177 210 230 236 276 295 322 345 354 413 420 460 483 529 590 644 690 708 805 826 885 966 1058 1180 1239 1357 1380 1587 1610 1652 1770 1932 2065 2116 2415 2478 2645 2714 3174 3220 3540 3703 4071 4130 4830 4956 5290 5428 6195 6348 6785 7406 7935 8142 8260 9499 9660 10580 11109 12390 13570 14812 15870 16284 18515 18998 20355 22218 24780 27140 28497 31211 31740 37030 37996 40710 44436 47495 55545 56994 62422 74060 81420 93633 94990 111090 113988 124844 142485 156055 187266 189980 218477 222180 284970 312110 374532 436954 468165 569940 624220 655431 873908 936330 1092385 1310862 1872660 2184770 2621724 3277155 4369540 6554310 13108620