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420052443020 = 22573000374593
BaseRepresentation
bin1100001110011010001…
…00111001111110001100
31111011020011210000112122
412013031010321332030
523340231411134040
6520545221352112
742230201566010
oct6071504717614
91434204700478
10420052443020
11152163720661
12694aa868638
13307c2b48342
141648b41a540
15add70731b5
hex61cd139f8c

420052443020 has 24 divisors (see below), whose sum is σ = 1008125863584. Its totient is φ = 144017980416.

The previous prime is 420052443011. The next prime is 420052443043. The reversal of 420052443020 is 20344250024.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1500187157 + ... + 1500187436.

It is an arithmetic number, because the mean of its divisors is an integer number (42005244316).

Almost surely, 2420052443020 is an apocalyptic number.

It is an amenable number.

420052443020 is an abundant number, since it is smaller than the sum of its proper divisors (588073420564).

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

420052443020 is a wasteful number, since it uses less digits than its factorization.

420052443020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000374609 (or 3000374607 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 420052443020 its reverse (20344250024), we get a palindrome (440396693044).

The spelling of 420052443020 in words is "four hundred twenty billion, fifty-two million, four hundred forty-three thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 3000374593 6000749186 12001498372 15001872965 21002622151 30003745930 42005244302 60007491860 84010488604 105013110755 210026221510 420052443020