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20207922 = 237481141
BaseRepresentation
bin100110100010…
…1100100110010
31102000200001120
41031011210302
520133123142
62001043110
7333523140
oct115054462
942020046
1020207922
1110452569
126926496
134256c67
142980590
151b927ec
hex1345932

20207922 has 16 divisors (see below), whose sum is σ = 46189632. Its totient is φ = 5773680.

The previous prime is 20207909. The next prime is 20207953. The reversal of 20207922 is 22970202.

It is a super-2 number, since 2×202079222 = 816720223116168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20207892 and 20207901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240529 + ... + 240612.

It is an arithmetic number, because the mean of its divisors is an integer number (2886852).

Almost surely, 220207922 is an apocalyptic number.

20207922 is an abundant number, since it is smaller than the sum of its proper divisors (25981710).

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

20207922 is a wasteful number, since it uses less digits than its factorization.

20207922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481153.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20207922 is about 4495.3222353909. The cubic root of 20207922 is about 272.3791659088.

The spelling of 20207922 in words is "twenty million, two hundred seven thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 481141 962282 1443423 2886846 3367987 6735974 10103961 20207922