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13104780 = 22351353317
BaseRepresentation
bin110001111111…
…011010001100
3220122210101020
4301333122030
511323323110
61144514140
7216250233
oct61773214
926583336
1013104780
1174408a7
12447b950
13293ab10
141a51b1a
15123cd70
hexc7f68c

13104780 has 96 divisors (see below), whose sum is σ = 40388544. Its totient is φ = 3154944.

The previous prime is 13104761. The next prime is 13104799. The reversal of 13104780 is 8740131.

It is an interprime number because it is at equal distance from previous prime (13104761) and next prime (13104799).

It is a self number, because there is not a number n which added to its sum of digits gives 13104780.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41182 + ... + 41498.

It is an arithmetic number, because the mean of its divisors is an integer number (420714).

Almost surely, 213104780 is an apocalyptic number.

13104780 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 13104780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20194272).

13104780 is an abundant number, since it is smaller than the sum of its proper divisors (27283764).

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

13104780 is a wasteful number, since it uses less digits than its factorization.

13104780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 13104780 is about 3620.0524858074. The cubic root of 13104780 is about 235.7635043489.

The spelling of 13104780 in words is "thirteen million, one hundred four thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 53 60 65 78 106 130 156 159 195 212 260 265 317 318 390 530 634 636 689 780 795 951 1060 1268 1378 1585 1590 1902 2067 2756 3170 3180 3445 3804 4121 4134 4755 6340 6890 8242 8268 9510 10335 12363 13780 16484 16801 19020 20605 20670 24726 33602 41210 41340 49452 50403 61815 67204 82420 84005 100806 123630 168010 201612 218413 247260 252015 336020 436826 504030 655239 873652 1008060 1092065 1310478 2184130 2620956 3276195 4368260 6552390 13104780