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13195680 = 253537743
BaseRepresentation
bin110010010101…
…100110100000
3220211102001220
4302111212200
511334230210
61150455040
7220106241
oct62254640
926742056
1013195680
1174a3123
124504480
1329702c4
141a76cc8
151259c70
hexc959a0

13195680 has 96 divisors (see below), whose sum is σ = 42747264. Its totient is φ = 3419136.

The previous prime is 13195669. The next prime is 13195733. The reversal of 13195680 is 8659131.

It is a tau number, because it is divible by the number of its divisors (96).

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, 17389 + ... + 18131.

It is an arithmetic number, because the mean of its divisors is an integer number (445284).

Almost surely, 213195680 is an apocalyptic number.

13195680 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 13195680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21373632).

13195680 is an abundant number, since it is smaller than the sum of its proper divisors (29551584).

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

13195680 is a wasteful number, since it uses less digits than its factorization.

13195680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 13195680 is about 3632.5858558333. The cubic root of 13195680 is about 236.3073654822.

The spelling of 13195680 in words is "thirteen million, one hundred ninety-five thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 37 40 48 60 74 80 96 111 120 148 160 185 222 240 296 370 444 480 555 592 740 743 888 1110 1184 1480 1486 1776 2220 2229 2960 2972 3552 3715 4440 4458 5920 5944 7430 8880 8916 11145 11888 14860 17760 17832 22290 23776 27491 29720 35664 44580 54982 59440 71328 82473 89160 109964 118880 137455 164946 178320 219928 274910 329892 356640 412365 439856 549820 659784 824730 879712 1099640 1319568 1649460 2199280 2639136 3298920 4398560 6597840 13195680