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14286280 = 235894013
BaseRepresentation
bin110110011111…
…110111001000
3222212211002111
4312133313020
512124130110
61230112104
7232300651
oct66376710
928784074
1014286280
118078548
12494b634
132c62828
141c7c528
1513c2e8a
hexd9fdc8

14286280 has 32 divisors (see below), whose sum is σ = 32513400. Its totient is φ = 5648896.

The previous prime is 14286247. The next prime is 14286287. The reversal of 14286280 is 8268241.

It can be written as a sum of positive squares in 4 ways, for example, as 11655396 + 2630884 = 3414^2 + 1622^2 .

It is a super-3 number, since 3×142862803 (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (14286287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554 + ... + 5566.

Almost surely, 214286280 is an apocalyptic number.

14286280 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 14286280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16256700).

14286280 is an abundant number, since it is smaller than the sum of its proper divisors (18227120).

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

14286280 is a wasteful number, since it uses less digits than its factorization.

14286280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113 (or 4109 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 14286280 is about 3779.7195663171. The cubic root of 14286280 is about 242.6459531623.

The spelling of 14286280 in words is "fourteen million, two hundred eighty-six thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 89 178 356 445 712 890 1780 3560 4013 8026 16052 20065 32104 40130 80260 160520 357157 714314 1428628 1785785 2857256 3571570 7143140 14286280