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8732880020 = 225990144101
BaseRepresentation
bin10000010001000010…
…10010110010010100
3211112121110021021202
420020201102302110
5120341104130040
64002315532032
7426260153414
oct101041226224
924477407252
108732880020
113781535017
12183875a018
13a92325337
145cbb60644
15361a15015
hex208852c94

8732880020 has 24 divisors (see below), whose sum is σ = 18341316168. Its totient is φ = 3492720000.

The previous prime is 8732880011. The next prime is 8732880041. The reversal of 8732880020 is 200882378.

It can be written as a sum of positive squares in 4 ways, for example, as 6197153284 + 2535726736 = 78722^2 + 50356^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175970 + ... + 220070.

It is an arithmetic number, because the mean of its divisors is an integer number (764221507).

Almost surely, 28732880020 is an apocalyptic number.

It is an amenable number.

8732880020 is an abundant number, since it is smaller than the sum of its proper divisors (9608436148).

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

8732880020 is a wasteful number, since it uses less digits than its factorization.

8732880020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54011 (or 54009 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 8732880020 is about 93449.8797216989. The cubic root of 8732880020 is about 2059.2978425119.

The spelling of 8732880020 in words is "eight billion, seven hundred thirty-two million, eight hundred eighty thousand, twenty".

Divisors: 1 2 4 5 10 20 9901 19802 39604 44101 49505 88202 99010 176404 198020 220505 441010 882020 436644001 873288002 1746576004 2183220005 4366440010 8732880020