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220007532 = 223139131899
BaseRepresentation
bin11010001110100…
…00110001101100
3120022222112121010
431013100301230
5422310220112
633455305220
75311014243
oct1507206154
9508875533
10220007532
11103208a08
126181b210
1336770c94
142130d95a
15144ac63c
hexd1d0c6c

220007532 has 24 divisors (see below), whose sum is σ = 517048000. Its totient is φ = 72807696.

The previous prime is 220007521. The next prime is 220007537. The reversal of 220007532 is 235700022.

It is a junction number, because it is equal to n+sod(n) for n = 220007499 and 220007508.

It is not an unprimeable number, because it can be changed into a prime (220007537) 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 7 ways as a sum of consecutive naturals, for example, 64282 + ... + 67617.

Almost surely, 2220007532 is an apocalyptic number.

It is an amenable number.

220007532 is an abundant number, since it is smaller than the sum of its proper divisors (297040468).

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

220007532 is a wasteful number, since it uses less digits than its factorization.

220007532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132045 (or 132043 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 220007532 is about 14832.6508756864. The cubic root of 220007532 is about 603.6879628827.

Adding to 220007532 its reverse (235700022), we get a palindrome (455707554).

The spelling of 220007532 in words is "two hundred twenty million, seven thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 139 278 417 556 834 1668 131899 263798 395697 527596 791394 1582788 18333961 36667922 55001883 73335844 110003766 220007532