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20031022301 = 53377943817
BaseRepresentation
bin10010101001111100…
…010010010011011101
31220200222220100211212
4102221330102103131
5312010420203201
613111354154205
71306246610633
oct225174222335
956628810755
1020031022301
118549a98594
123a70422965
131b72c4a024
14d8047d353
157c3847abb
hex4a9f124dd

20031022301 has 4 divisors (see below), whose sum is σ = 20408966172. Its totient is φ = 19653078432.

The previous prime is 20031022267. The next prime is 20031022307. The reversal of 20031022301 is 10322013002.

It is a happy number.

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 13682916676 + 6348105625 = 116974^2 + 79675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20031022301 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 (20031022307) 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, 188971856 + ... + 188971961.

It is an arithmetic number, because the mean of its divisors is an integer number (5102241543).

Almost surely, 220031022301 is an apocalyptic number.

It is an amenable number.

20031022301 is a deficient number, since it is larger than the sum of its proper divisors (377943871).

20031022301 is an equidigital number, since it uses as much as digits as its factorization.

20031022301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377943870.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20031022301 its reverse (10322013002), we get a palindrome (30353035303).

The spelling of 20031022301 in words is "twenty billion, thirty-one million, twenty-two thousand, three hundred one".

Divisors: 1 53 377943817 20031022301