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14461220 = 2251742533
BaseRepresentation
bin110111001010…
…100100100100
31000012201001202
4313022210210
512200224340
61233542032
7233626664
oct67124444
930181052
1014461220
118187a24
124a14918
132cc4347
141cc61a4
151409c15
hexdca924

14461220 has 24 divisors (see below), whose sum is σ = 32155704. Its totient is φ = 5444096.

The previous prime is 14461219. The next prime is 14461229. The reversal of 14461220 is 2216441.

It can be written as a sum of positive squares in 4 ways, for example, as 1915456 + 12545764 = 1384^2 + 3542^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 14461192 and 14461201.

It is not an unprimeable number, because it can be changed into a prime (14461229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20927 + ... + 21606.

It is an arithmetic number, because the mean of its divisors is an integer number (1339821).

Almost surely, 214461220 is an apocalyptic number.

14461220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14461220 is an abundant number, since it is smaller than the sum of its proper divisors (17694484).

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

14461220 is a wasteful number, since it uses less digits than its factorization.

14461220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42559 (or 42557 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 14461220 is about 3802.7910802462. The cubic root of 14461220 is about 243.6323631353.

Adding to 14461220 its reverse (2216441), we get a palindrome (16677661).

The spelling of 14461220 in words is "fourteen million, four hundred sixty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 42533 85066 170132 212665 425330 723061 850660 1446122 2892244 3615305 7230610 14461220