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13081080 = 2335671627
BaseRepresentation
bin110001111001…
…100111111000
3220121120212110
4301321213320
511322043310
61144212320
7216121155
oct61714770
926546773
1013081080
117425011
12446a0a0
1329300ac
141a4722c
151235d20
hexc799f8

13081080 has 64 divisors (see below), whose sum is σ = 39853440. Its totient is φ = 3434112.

The previous prime is 13081031. The next prime is 13081093. The reversal of 13081080 is 8018031.

It is a happy number.

It is a super-2 number, since 2×130810802 = 342229307932800, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

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, 7227 + ... + 8853.

It is an arithmetic number, because the mean of its divisors is an integer number (622710).

Almost surely, 213081080 is an apocalyptic number.

13081080 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 13081080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19926720).

13081080 is an abundant number, since it is smaller than the sum of its proper divisors (26772360).

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

13081080 is a wasteful number, since it uses less digits than its factorization.

13081080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708 (or 1704 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 13081080 is about 3616.7775712642. Note that the first 3 decimals coincide. The cubic root of 13081080 is about 235.6212924529.

The spelling of 13081080 in words is "thirteen million, eighty-one thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 67 120 134 201 268 335 402 536 670 804 1005 1340 1608 1627 2010 2680 3254 4020 4881 6508 8040 8135 9762 13016 16270 19524 24405 32540 39048 48810 65080 97620 109009 195240 218018 327027 436036 545045 654054 872072 1090090 1308108 1635135 2180180 2616216 3270270 4360360 6540540 13081080