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14445020 = 2251017151
BaseRepresentation
bin110111000110…
…100111011100
31000011212211202
4313012213130
512144220040
61233335032
7233531522
oct67064734
930155752
1014445020
118176837
124a07478
132cb9b65
141cc0312
151405015
hexdc69dc

14445020 has 24 divisors (see below), whose sum is σ = 30639168. Its totient is φ = 5720000.

The previous prime is 14445001. The next prime is 14445023. The reversal of 14445020 is 2054441.

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 = 14444983 and 14445001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14445023) 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, 1556 + ... + 5595.

It is an arithmetic number, because the mean of its divisors is an integer number (1276632).

Almost surely, 214445020 is an apocalyptic number.

14445020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14445020 is an abundant number, since it is smaller than the sum of its proper divisors (16194148).

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

14445020 is a wasteful number, since it uses less digits than its factorization.

14445020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7261 (or 7259 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 14445020 is about 3800.6604689185. The cubic root of 14445020 is about 243.5413537783.

Adding to 14445020 its reverse (2054441), we get a palindrome (16499461).

The spelling of 14445020 in words is "fourteen million, four hundred forty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 7151 14302 28604 35755 71510 143020 722251 1444502 2889004 3611255 7222510 14445020