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20414454 = 233791957
BaseRepresentation
bin100110111011…
…1111111110110
31102102011100220
41031313333312
520211230304
62005315210
7335343234
oct115677766
942364326
1020414454
1110583755
126a05b06
1342c9c78
1429d5954
151bd3ad9
hex1377ff6

20414454 has 16 divisors (see below), whose sum is σ = 41932848. Its totient is φ = 6620832.

The previous prime is 20414441. The next prime is 20414473. The reversal of 20414454 is 45441402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45757 + ... + 46200.

It is an arithmetic number, because the mean of its divisors is an integer number (2620803).

Almost surely, 220414454 is an apocalyptic number.

20414454 is an abundant number, since it is smaller than the sum of its proper divisors (21518394).

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

20414454 is a wasteful number, since it uses less digits than its factorization.

20414454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91999.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 20414454 is about 4518.2357176225. The cubic root of 20414454 is about 273.3039591013.

Adding to 20414454 its reverse (45441402), we get a palindrome (65855856).

The spelling of 20414454 in words is "twenty million, four hundred fourteen thousand, four hundred fifty-four".

Divisors: 1 2 3 6 37 74 111 222 91957 183914 275871 551742 3402409 6804818 10207227 20414454