Search a number
-
+
12286400 = 265271097
BaseRepresentation
bin101110110111…
…100111000000
3212010012202212
4232313213000
511121131100
61115201252
7206301260
oct56674700
925105685
1012286400
116a31a55
124146228
132712479
1418bb7a0
15112a635
hexbb79c0

12286400 has 84 divisors (see below), whose sum is σ = 34582608. Its totient is φ = 4208640.

The previous prime is 12286397. The next prime is 12286403. The reversal of 12286400 is 468221.

It is an interprime number because it is at equal distance from previous prime (12286397) and next prime (12286403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12286403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10652 + ... + 11748.

Almost surely, 212286400 is an apocalyptic number.

12286400 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 12286400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17291304).

12286400 is an abundant number, since it is smaller than the sum of its proper divisors (22296208).

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

12286400 is a wasteful number, since it uses less digits than its factorization.

12286400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 12286400 is about 3505.1961428713. The cubic root of 12286400 is about 230.7499151924.

The spelling of 12286400 in words is "twelve million, two hundred eighty-six thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 140 160 175 200 224 280 320 350 400 448 560 700 800 1097 1120 1400 1600 2194 2240 2800 4388 5485 5600 7679 8776 10970 11200 15358 17552 21940 27425 30716 35104 38395 43880 54850 61432 70208 76790 87760 109700 122864 153580 175520 191975 219400 245728 307160 351040 383950 438800 491456 614320 767900 877600 1228640 1535800 1755200 2457280 3071600 6143200 12286400