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523220032 = 268175313
BaseRepresentation
bin11111001011111…
…011010001000000
31100110112022221201
4133023323101000
52032421020112
6123530230544
715652203556
oct3713732100
91313468851
10523220032
11249386a55
12127285454
138452506a
144d6bbbd6
1530e03257
hex1f2fb440

523220032 has 14 divisors (see below), whose sum is σ = 1038264878. Its totient is φ = 261609984.

The previous prime is 523220023. The next prime is 523220041. The reversal of 523220032 is 230022325.

It is an interprime number because it is at equal distance from previous prime (523220023) and next prime (523220041).

It can be written as a sum of positive squares in only one way, i.e., 429981696 + 93238336 = 20736^2 + 9656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 523219991 and 523220009.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4087593 + ... + 4087720.

It is an arithmetic number, because the mean of its divisors is an integer number (74161777).

Almost surely, 2523220032 is an apocalyptic number.

It is an amenable number.

523220032 is a deficient number, since it is larger than the sum of its proper divisors (515044846).

523220032 is an equidigital number, since it uses as much as digits as its factorization.

523220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8175325 (or 8175315 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 523220032 is about 22874.0034099849. The cubic root of 523220032 is about 805.8015918768.

Adding to 523220032 its reverse (230022325), we get a palindrome (753242357).

The spelling of 523220032 in words is "five hundred twenty-three million, two hundred twenty thousand, thirty-two".

Divisors: 1 2 4 8 16 32 64 8175313 16350626 32701252 65402504 130805008 261610016 523220032