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20064373 = 72409477
BaseRepresentation
bin100110010001…
…0100001110101
31101202101010221
41030202201311
520114024443
61554014341
7332354500
oct114424165
941671127
1020064373
111036472a
1268773b1
134206814
142944137
151b64eed
hex1322875

20064373 has 6 divisors (see below), whose sum is σ = 23340246. Its totient is φ = 17197992.

The previous prime is 20064371. The next prime is 20064377. The reversal of 20064373 is 37346002.

It can be written as a sum of positive squares in only one way, i.e., 20007729 + 56644 = 4473^2 + 238^2 .

It is not a de Polignac number, because 20064373 - 21 = 20064371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20064371) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 204690 + ... + 204787.

It is an arithmetic number, because the mean of its divisors is an integer number (3890041).

Almost surely, 220064373 is an apocalyptic number.

It is an amenable number.

20064373 is a deficient number, since it is larger than the sum of its proper divisors (3275873).

20064373 is an equidigital number, since it uses as much as digits as its factorization.

20064373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409491 (or 409484 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 20064373 is about 4479.3272932439. The cubic root of 20064373 is about 271.7326751082.

The spelling of 20064373 in words is "twenty million, sixty-four thousand, three hundred seventy-three".

Divisors: 1 7 49 409477 2866339 20064373