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520580046 = 23789139267
BaseRepresentation
bin11111000001110…
…110101111001110
31100021120012120110
4133001312233032
52031232030141
6123353500450
715620600040
oct3701665716
91307505513
10520580046
11247943548
12126411726
1383b0c53c
144d1d1a90
1530a80e16
hex1f076bce

520580046 has 32 divisors (see below), whose sum is σ = 1203275520. Its totient is φ = 147064896.

The previous prime is 520580033. The next prime is 520580057. The reversal of 520580046 is 640085025.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 520579995 and 520580022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65896 + ... + 73371.

It is an arithmetic number, because the mean of its divisors is an integer number (37602360).

Almost surely, 2520580046 is an apocalyptic number.

520580046 is an abundant number, since it is smaller than the sum of its proper divisors (682695474).

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

520580046 is a wasteful number, since it uses less digits than its factorization.

520580046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139368.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 520580046 is about 22816.2233071120. The cubic root of 520580046 is about 804.4440413665. Note that the first 3 decimals are identical.

The spelling of 520580046 in words is "five hundred twenty million, five hundred eighty thousand, forty-six".

Divisors: 1 2 3 6 7 14 21 42 89 178 267 534 623 1246 1869 3738 139267 278534 417801 835602 974869 1949738 2924607 5849214 12394763 24789526 37184289 74368578 86763341 173526682 260290023 520580046