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839800224020 = 22541990011201
BaseRepresentation
bin11000011100001111111…
…11100111100100010100
32222021200010021121100202
430032013333213210110
5102224402324132040
61441444321200032
7114450014060402
oct14160777474424
92867603247322
10839800224020
112a418037311a
12116913490018
13612678228a4
142c90a1ac472
1516ca24b6015
hexc387fe7914

839800224020 has 12 divisors (see below), whose sum is σ = 1763580470484. Its totient is φ = 335920089600.

The previous prime is 839800224019. The next prime is 839800224071. The reversal of 839800224020 is 20422008938.

It can be written as a sum of positive squares in 2 ways, for example, as 419898816016 + 419901408004 = 647996^2 + 647998^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20995005581 + ... + 20995005620.

It is an arithmetic number, because the mean of its divisors is an integer number (146965039207).

Almost surely, 2839800224020 is an apocalyptic number.

It is an amenable number.

839800224020 is an abundant number, since it is smaller than the sum of its proper divisors (923780246464).

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

839800224020 is a wasteful number, since it uses less digits than its factorization.

839800224020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41990011210 (or 41990011208 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 839800224020 in words is "eight hundred thirty-nine billion, eight hundred million, two hundred twenty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 41990011201 83980022402 167960044804 209950056005 419900112010 839800224020