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BaseRepresentation
bin1100001110110111101…
…01110011010111000100
31111011212102212102200200
412013123311303113010
523341233314021040
6521025550410500
742236300155353
oct6073365632704
91434772772620
10420300142020
11152280522580
1269559800a30
13308322635b5
14164b229799a
hex61dbd735c4

420300142020 has 144 divisors (see below), whose sum is σ = 1391002441920. Its totient is φ = 101876947200.

The previous prime is 420300142019. The next prime is 420300142021. The reversal of 420300142020 is 20241003024.

420300142020 is a `hidden beast` number, since 420 + 30 + 0 + 14 + 202 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (420300142019) and next prime (420300142021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 420300141984 and 420300142002.

It is not an unprimeable number, because it can be changed into a prime (420300142021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27769855 + ... + 27784985.

It is an arithmetic number, because the mean of its divisors is an integer number (9659739180).

Almost surely, 2420300142020 is an apocalyptic number.

It is an amenable number.

420300142020 is an abundant number, since it is smaller than the sum of its proper divisors (970702299900).

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

420300142020 is a wasteful number, since it uses less digits than its factorization.

420300142020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29186 (or 29181 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 420300142020 its reverse (20241003024), we get a palindrome (440541145044).

The spelling of 420300142020 in words is "four hundred twenty billion, three hundred million, one hundred forty-two thousand, twenty".