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20304230044 = 2271850339191
BaseRepresentation
bin10010111010001110…
…011111011010011100
31221102000222202102011
4102322032133122130
5313040340330134
613154434041004
71316105051650
oct227216373234
957360882364
1020304230044
11867a23260a
123b27a19164
131bb7726c07
14da887aa60
157dc813264
hex4ba39f69c

20304230044 has 24 divisors (see below), whose sum is σ = 40611691008. Its totient is φ = 8701120560.

The previous prime is 20304230033. The next prime is 20304230069. The reversal of 20304230044 is 44003240302.

It is a junction number, because it is equal to n+sod(n) for n = 20304229997 and 20304230024.

It is a congruent 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, 498489 + ... + 537679.

It is an arithmetic number, because the mean of its divisors is an integer number (1692153792).

Almost surely, 220304230044 is an apocalyptic number.

It is an amenable number.

20304230044 is an abundant number, since it is smaller than the sum of its proper divisors (20307460964).

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

20304230044 is a wasteful number, since it uses less digits than its factorization.

20304230044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57705 (or 57703 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20304230044 its reverse (44003240302), we get a palindrome (64307470346).

The spelling of 20304230044 in words is "twenty billion, three hundred four million, two hundred thirty thousand, forty-four".

Divisors: 1 2 4 7 14 28 18503 37006 39191 74012 78382 129521 156764 259042 274337 518084 548674 1097348 725151073 1450302146 2900604292 5076057511 10152115022 20304230044