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14515420 = 2255571303
BaseRepresentation
bin110111010111…
…110011011100
31000022110102011
4313113303130
512203443140
61235041004
7234244003
oct67276334
930273364
1014515420
118214717
124a40164
133012c0a
141cdbc3a
15141acea
hexdd7cdc

14515420 has 24 divisors (see below), whose sum is σ = 30560544. Its totient is φ = 5791296.

The previous prime is 14515367. The next prime is 14515451. The reversal of 14515420 is 2451541.

It is a junction number, because it is equal to n+sod(n) for n = 14515391 and 14515400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10489 + ... + 11791.

It is an arithmetic number, because the mean of its divisors is an integer number (1273356).

Almost surely, 214515420 is an apocalyptic number.

14515420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14515420 is an abundant number, since it is smaller than the sum of its proper divisors (16045124).

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

14515420 is a wasteful number, since it uses less digits than its factorization.

14515420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 14515420 is about 3809.9107601097. The cubic root of 14515420 is about 243.9363580323.

Adding to 14515420 its reverse (2451541), we get a palindrome (16966961).

The spelling of 14515420 in words is "fourteen million, five hundred fifteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 557 1114 1303 2228 2606 2785 5212 5570 6515 11140 13030 26060 725771 1451542 2903084 3628855 7257710 14515420