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13424800 = 255297173
BaseRepresentation
bin110011001101…
…100010100000
3221021001100211
4303031202200
511414043200
61155423504
7222052234
oct63154240
927231324
1013424800
11763a284
1245b4b94
132a2068c
141ad65c4
1512a2aba
hexccd8a0

13424800 has 72 divisors (see below), whose sum is σ = 33302556. Its totient is φ = 5283840.

The previous prime is 13424797. The next prime is 13424813. The reversal of 13424800 is 842431.

It can be written as a sum of positive squares in 6 ways, for example, as 7683984 + 5740816 = 2772^2 + 2396^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77514 + ... + 77686.

Almost surely, 213424800 is an apocalyptic number.

13424800 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 13424800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16651278).

13424800 is an abundant number, since it is smaller than the sum of its proper divisors (19877756).

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

13424800 is a wasteful number, since it uses less digits than its factorization.

13424800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 13424800 is about 3663.9868995399. The cubic root of 13424800 is about 237.6672137308.

The spelling of 13424800 in words is "thirteen million, four hundred twenty-four thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 97 100 160 173 194 200 346 388 400 485 692 776 800 865 970 1384 1552 1730 1940 2425 2768 3104 3460 3880 4325 4850 5536 6920 7760 8650 9700 13840 15520 16781 17300 19400 27680 33562 34600 38800 67124 69200 77600 83905 134248 138400 167810 268496 335620 419525 536992 671240 839050 1342480 1678100 2684960 3356200 6712400 13424800