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13143200 = 255272347
BaseRepresentation
bin110010001000…
…110010100000
3220201202002012
4302020302200
511331040300
61145412052
7216500240
oct62106240
926652065
1013143200
117467754
12449a028
132952455
141a61b20
151249435
hexc88ca0

13143200 has 72 divisors (see below), whose sum is σ = 36685152. Its totient is φ = 4504320.

The previous prime is 13143197. The next prime is 13143203. The reversal of 13143200 is 234131.

It is an interprime number because it is at equal distance from previous prime (13143197) and next prime (13143203).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4427 + ... + 6773.

It is an arithmetic number, because the mean of its divisors is an integer number (509516).

Almost surely, 213143200 is an apocalyptic number.

13143200 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 13143200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18342576).

13143200 is an abundant number, since it is smaller than the sum of its proper divisors (23541952).

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

13143200 is a wasteful number, since it uses less digits than its factorization.

13143200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2374 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13143200 is about 3625.3551550159. The cubic root of 13143200 is about 235.9936798078.

Adding to 13143200 its reverse (234131), we get a palindrome (13377331).

The spelling of 13143200 in words is "thirteen million, one hundred forty-three thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 140 160 175 200 224 280 350 400 560 700 800 1120 1400 2347 2800 4694 5600 9388 11735 16429 18776 23470 32858 37552 46940 58675 65716 75104 82145 93880 117350 131432 164290 187760 234700 262864 328580 375520 410725 469400 525728 657160 821450 938800 1314320 1642900 1877600 2628640 3285800 6571600 13143200