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20072301 = 36690767
BaseRepresentation
bin100110010010…
…0011101101101
31101202210000120
41030210131231
520114303201
61554115153
7332416554
oct114443555
941683016
1020072301
111036a687
12687bab9
13420a302
142946d9b
151b67536
hex132476d

20072301 has 4 divisors (see below), whose sum is σ = 26763072. Its totient is φ = 13381532.

The previous prime is 20072287. The next prime is 20072317. The reversal of 20072301 is 10327002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20072301 - 221 = 17975149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20572301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3345381 + ... + 3345386.

It is an arithmetic number, because the mean of its divisors is an integer number (6690768).

Almost surely, 220072301 is an apocalyptic number.

It is an amenable number.

20072301 is a deficient number, since it is larger than the sum of its proper divisors (6690771).

20072301 is an equidigital number, since it uses as much as digits as its factorization.

20072301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6690770.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 20072301 is about 4480.2121601549. The cubic root of 20072301 is about 271.7684601449.

Adding to 20072301 its reverse (10327002), we get a palindrome (30399303).

The spelling of 20072301 in words is "twenty million, seventy-two thousand, three hundred one".

Divisors: 1 3 6690767 20072301