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300143012020 = 22519377757257
BaseRepresentation
bin1000101111000011110…
…10101110100010110100
31001200201111000210100121
410113201322232202310
514404143102341040
6345514522221324
730453552336115
oct4274172564264
91050644023317
10300143012020
111063209a6355
124a205354844
13223c3651bc7
141075412c20c
157c1a00cc4a
hex45e1eae8b4

300143012020 has 24 divisors (see below), whose sum is σ = 633566138184. Its totient is φ = 119435145216.

The previous prime is 300143012011. The next prime is 300143012023. The reversal of 300143012020 is 20210341003.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1034651556 + 299108360464 = 32166^2 + 546908^2 .

It is a junction number, because it is equal to n+sod(n) for n = 300143011985 and 300143012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300143012023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38874769 + ... + 38882488.

It is an arithmetic number, because the mean of its divisors is an integer number (26398589091).

Almost surely, 2300143012020 is an apocalyptic number.

It is an amenable number.

300143012020 is an abundant number, since it is smaller than the sum of its proper divisors (333423126164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

300143012020 is a wasteful number, since it uses less digits than its factorization.

300143012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77757459 (or 77757457 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 300143012020 its reverse (20210341003), we get a palindrome (320353353023).

The spelling of 300143012020 in words is "three hundred billion, one hundred forty-three million, twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 3860 77757257 155514514 311029028 388786285 777572570 1555145140 15007150601 30014301202 60028602404 75035753005 150071506010 300143012020