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14530420 = 225726521
BaseRepresentation
bin110111011011…
…011101110100
31000100012222201
4313123131310
512204433140
61235234244
7234335512
oct67333564
930305881
1014530420
118224a13
124a48984
1330199a8
141d034b2
15142049a
hexddb774

14530420 has 12 divisors (see below), whose sum is σ = 30513924. Its totient is φ = 5812160.

The previous prime is 14530409. The next prime is 14530433. The reversal of 14530420 is 2403541.

It can be written as a sum of positive squares in 2 ways, for example, as 3732624 + 10797796 = 1932^2 + 3286^2 .

It is a super-2 number, since 2×145304202 = 422266210752800, which contains 22 as substring.

It is a nialpdrome in base 16.

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, 363241 + ... + 363280.

It is an arithmetic number, because the mean of its divisors is an integer number (2542827).

Almost surely, 214530420 is an apocalyptic number.

14530420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14530420 is an abundant number, since it is smaller than the sum of its proper divisors (15983504).

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

14530420 is a wasteful number, since it uses less digits than its factorization.

14530420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726530 (or 726528 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 14530420 is about 3811.8788018509. The cubic root of 14530420 is about 244.0203557326.

Adding to 14530420 its reverse (2403541), we get a palindrome (16933961).

The spelling of 14530420 in words is "fourteen million, five hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 726521 1453042 2906084 3632605 7265210 14530420