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14625220 = 225731261
BaseRepresentation
bin110111110010…
…100111000100
31000112001000211
4313302213010
512221001340
61241245204
7235212061
oct67624704
930461024
1014625220
11828a165
124a93804
133050b9c
141d29c68
15143d5ea
hexdf29c4

14625220 has 12 divisors (see below), whose sum is σ = 30713004. Its totient is φ = 5850080.

The previous prime is 14625209. The next prime is 14625223. The reversal of 14625220 is 2252641.

It can be written as a sum of positive squares in 2 ways, for example, as 1679616 + 12945604 = 1296^2 + 3598^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14625191 and 14625200.

It is not an unprimeable number, because it can be changed into a prime (14625223) 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 3 ways as a sum of consecutive naturals, for example, 365611 + ... + 365650.

It is an arithmetic number, because the mean of its divisors is an integer number (2559417).

Almost surely, 214625220 is an apocalyptic number.

14625220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14625220 is an abundant number, since it is smaller than the sum of its proper divisors (16087784).

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

14625220 is a wasteful number, since it uses less digits than its factorization.

14625220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731270 (or 731268 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 14625220 is about 3824.2933987862. The cubic root of 14625220 is about 244.5498885462.

Adding to 14625220 its reverse (2252641), we get a palindrome (16877861).

The spelling of 14625220 in words is "fourteen million, six hundred twenty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 731261 1462522 2925044 3656305 7312610 14625220