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20073701 = 42147681
BaseRepresentation
bin100110010010…
…0110011100101
31101202211221102
41030210303211
520114324301
61554125445
7332423624
oct114446345
941684842
1020073701
111037073a
126880885
13420ab3b
1429476bb
151b67b6b
hex1324ce5

20073701 has 4 divisors (see below), whose sum is σ = 20121804. Its totient is φ = 20025600.

The previous prime is 20073679. The next prime is 20073707. The reversal of 20073701 is 10737002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1324801 + 18748900 = 1151^2 + 4330^2 .

It is a cyclic number.

It is not a de Polignac number, because 20073701 - 26 = 20073637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20073707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23420 + ... + 24261.

It is an arithmetic number, because the mean of its divisors is an integer number (5030451).

Almost surely, 220073701 is an apocalyptic number.

It is an amenable number.

20073701 is a deficient number, since it is larger than the sum of its proper divisors (48103).

20073701 is an equidigital number, since it uses as much as digits as its factorization.

20073701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48102.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 20073701 is about 4480.3684000314. The cubic root of 20073701 is about 271.7747784207.

The spelling of 20073701 in words is "twenty million, seventy-three thousand, seven hundred one".

Divisors: 1 421 47681 20073701