Search a number
-
+
20021101301 = 43465607007
BaseRepresentation
bin10010101001010110…
…011100001011110101
31220200022020022210102
4102221112130023311
5312000400220201
613110401403445
71306066360505
oct225126341365
956608208712
1020021101301
118544431813
123a69039585
131b70b85406
14d7d019a05
157c2a3826b
hex4a959c2f5

20021101301 has 4 divisors (see below), whose sum is σ = 20486708352. Its totient is φ = 19555494252.

The previous prime is 20021101279. The next prime is 20021101307. The reversal of 20021101301 is 10310112002.

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 20021101301 - 26 = 20021101237 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 (20021101307) 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, 232803461 + ... + 232803546.

It is an arithmetic number, because the mean of its divisors is an integer number (5121677088).

Almost surely, 220021101301 is an apocalyptic number.

It is an amenable number.

20021101301 is a deficient number, since it is larger than the sum of its proper divisors (465607051).

20021101301 is an equidigital number, since it uses as much as digits as its factorization.

20021101301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465607050.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20021101301 its reverse (10310112002), we get a palindrome (30331213303).

The spelling of 20021101301 in words is "twenty billion, twenty-one million, one hundred one thousand, three hundred one".

Divisors: 1 43 465607007 20021101301