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14224340 = 2251354709
BaseRepresentation
bin110110010000…
…101111010100
3222202200010102
4312100233110
512120134330
61224513232
7231622244
oct66205724
928680112
1014224340
118035a59
12491b818
132c40590
141c63b24
1513ae945
hexd90bd4

14224340 has 24 divisors (see below), whose sum is σ = 32169480. Its totient is φ = 5251968.

The previous prime is 14224333. The next prime is 14224349. The reversal of 14224340 is 4342241.

14224340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 56644 + 14167696 = 238^2 + 3764^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14224349) 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, 27095 + ... + 27614.

It is an arithmetic number, because the mean of its divisors is an integer number (1340395).

Almost surely, 214224340 is an apocalyptic number.

14224340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14224340 is an abundant number, since it is smaller than the sum of its proper divisors (17945140).

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

14224340 is a wasteful number, since it uses less digits than its factorization.

14224340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54731 (or 54729 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 14224340 is about 3771.5169361942. The cubic root of 14224340 is about 242.2947709191.

Adding to 14224340 its reverse (4342241), we get a palindrome (18566581).

The spelling of 14224340 in words is "fourteen million, two hundred twenty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 54709 109418 218836 273545 547090 711217 1094180 1422434 2844868 3556085 7112170 14224340