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13679120 = 2457131879
BaseRepresentation
bin110100001011…
…101000010000
3221201222020002
4310023220100
512000212440
61205105132
7224161550
oct64135020
927658202
1013679120
1177a3364
1246b81a8
132aac370
141b61160
151303115
hexd0ba10

13679120 has 80 divisors (see below), whose sum is σ = 39164160. Its totient is φ = 4326912.

The previous prime is 13679119. The next prime is 13679131. The reversal of 13679120 is 2197631.

It is a tau number, because it is divible by the number of its divisors (80).

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, 6341 + ... + 8219.

It is an arithmetic number, because the mean of its divisors is an integer number (489552).

Almost surely, 213679120 is an apocalyptic number.

13679120 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 13679120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19582080).

13679120 is an abundant number, since it is smaller than the sum of its proper divisors (25485040).

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

13679120 is a wasteful number, since it uses less digits than its factorization.

13679120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 13679120 is about 3698.5294374927. The cubic root of 13679120 is about 239.1586279084.

The spelling of 13679120 in words is "thirteen million, six hundred seventy-nine thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 13 14 16 20 26 28 35 40 52 56 65 70 80 91 104 112 130 140 182 208 260 280 364 455 520 560 728 910 1040 1456 1820 1879 3640 3758 7280 7516 9395 13153 15032 18790 24427 26306 30064 37580 48854 52612 65765 75160 97708 105224 122135 131530 150320 170989 195416 210448 244270 263060 341978 390832 488540 526120 683956 854945 977080 1052240 1367912 1709890 1954160 2735824 3419780 6839560 13679120