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14688020 = 225734401
BaseRepresentation
bin111000000001…
…111100010100
31000122020011202
4320001330110
512230004040
61242452032
7235563134
oct70017424
930566152
1014688020
118322366
124b04018
133073649
141d44ac4
151452015
hexe01f14

14688020 has 12 divisors (see below), whose sum is σ = 30844884. Its totient is φ = 5875200.

The previous prime is 14688019. The next prime is 14688029. The reversal of 14688020 is 2088641.

It can be written as a sum of positive squares in 2 ways, for example, as 7739524 + 6948496 = 2782^2 + 2636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14688029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367181 + ... + 367220.

It is an arithmetic number, because the mean of its divisors is an integer number (2570407).

Almost surely, 214688020 is an apocalyptic number.

14688020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14688020 is an abundant number, since it is smaller than the sum of its proper divisors (16156864).

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

14688020 is a wasteful number, since it uses less digits than its factorization.

14688020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734410 (or 734408 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 14688020 is about 3832.4952707081. The cubic root of 14688020 is about 244.8994172712.

The spelling of 14688020 in words is "fourteen million, six hundred eighty-eight thousand, twenty".

Divisors: 1 2 4 5 10 20 734401 1468802 2937604 3672005 7344010 14688020