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14555540 = 225727777
BaseRepresentation
bin110111100001…
…100110010100
31000101111110002
4313201212110
512211234130
61235550432
7234501656
oct67414624
930344402
1014555540
11824187a
124a5b418
13302825c
141d0c6d6
151427b45
hexde1994

14555540 has 12 divisors (see below), whose sum is σ = 30566676. Its totient is φ = 5822208.

The previous prime is 14555521. The next prime is 14555551. The reversal of 14555540 is 4555541.

It is a happy number.

14555540 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 2 ways, for example, as 3888784 + 10666756 = 1972^2 + 3266^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363869 + ... + 363908.

It is an arithmetic number, because the mean of its divisors is an integer number (2547223).

Almost surely, 214555540 is an apocalyptic number.

14555540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14555540 is an abundant number, since it is smaller than the sum of its proper divisors (16011136).

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

14555540 is a wasteful number, since it uses less digits than its factorization.

14555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727786 (or 727784 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 14555540 is about 3815.1723421099. The cubic root of 14555540 is about 244.1608945093.

Subtracting from 14555540 its reverse (4555541), we obtain a palindrome (9999999).

The spelling of 14555540 in words is "fourteen million, five hundred fifty-five thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 727777 1455554 2911108 3638885 7277770 14555540