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5120304520 = 235128007613
BaseRepresentation
bin1001100010011000…
…11010010110001000
3111012211202102100011
410301030122112020
540441244221040
62204025521304
7240612604342
oct46114322610
914184672304
105120304520
112198307631
12baa943234
13637a612b6
1436805a292
151ee7bc3ea
hex13131a588

5120304520 has 16 divisors (see below), whose sum is σ = 11520685260. Its totient is φ = 2048121792.

The previous prime is 5120304517. The next prime is 5120304521. The reversal of 5120304520 is 254030215.

It can be written as a sum of positive squares in 2 ways, for example, as 5035037764 + 85266756 = 70958^2 + 9234^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5120304491 and 5120304500.

It is not an unprimeable number, because it can be changed into a prime (5120304521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64003767 + ... + 64003846.

Almost surely, 25120304520 is an apocalyptic number.

It is an amenable number.

5120304520 is an abundant number, since it is smaller than the sum of its proper divisors (6400380740).

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

5120304520 is a wasteful number, since it uses less digits than its factorization.

5120304520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128007624 (or 128007620 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 5120304520 is about 71556.3031465433. The cubic root of 5120304520 is about 1723.5819215800.

Adding to 5120304520 its reverse (254030215), we get a palindrome (5374334735).

The spelling of 5120304520 in words is "five billion, one hundred twenty million, three hundred four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 128007613 256015226 512030452 640038065 1024060904 1280076130 2560152260 5120304520