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20772414 = 2321388771
BaseRepresentation
bin100111100111…
…1011000111110
31110002100101200
41033033120332
520304204124
62021120330
7341363655
oct117173076
943070350
1020772414
11107a8693
126b590a6
1343c3b90
142a8a19c
151c54bc9
hex13cf63e

20772414 has 24 divisors (see below), whose sum is σ = 48469512. Its totient is φ = 6391440.

The previous prime is 20772403. The next prime is 20772443. The reversal of 20772414 is 41427702.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44152 + ... + 44619.

It is an arithmetic number, because the mean of its divisors is an integer number (2019563).

Almost surely, 220772414 is an apocalyptic number.

20772414 is an abundant number, since it is smaller than the sum of its proper divisors (27697098).

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

20772414 is a wasteful number, since it uses less digits than its factorization.

20772414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88792 (or 88789 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 20772414 is about 4557.6763816664. The cubic root of 20772414 is about 274.8921406215.

The spelling of 20772414 in words is "twenty million, seven hundred seventy-two thousand, four hundred fourteen".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 88771 177542 266313 532626 798939 1154023 1597878 2308046 3462069 6924138 10386207 20772414