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20021010301 = 59033391667
BaseRepresentation
bin10010101001010110…
…000101111101111101
31220200022001200222001
4102221112011331331
5312000334312201
613110355422301
71306065531265
oct225126057575
956608050861
1020021010301
11854437a406
123a68bb4991
131b70b52b76
14d7cdd47a5
157c2a1b301
hex4a9585f7d

20021010301 has 4 divisors (see below), whose sum is σ = 20024407872. Its totient is φ = 20017612732.

The previous prime is 20021010293. The next prime is 20021010311. The reversal of 20021010301 is 10301012002.

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 20021010301 - 23 = 20021010293 is a prime.

It is a super-2 number, since 2×200210103012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021010311) 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, 1689931 + ... + 1701736.

It is an arithmetic number, because the mean of its divisors is an integer number (5006101968).

Almost surely, 220021010301 is an apocalyptic number.

It is an amenable number.

20021010301 is a deficient number, since it is larger than the sum of its proper divisors (3397571).

20021010301 is an equidigital number, since it uses as much as digits as its factorization.

20021010301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397570.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20021010301 its reverse (10301012002), we get a palindrome (30322022303).

The spelling of 20021010301 in words is "twenty billion, twenty-one million, ten thousand, three hundred one".

Divisors: 1 5903 3391667 20021010301