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220532473 = 776141399
BaseRepresentation
bin11010010010100…
…00111011111001
3120100222012200101
431021100323321
5422424014343
633514435401
75315331550
oct1511207371
9510865611
10220532473
11103537347
1261a32b61
13368c5bb5
1421408d97
1514562e4d
hexd250ef9

220532473 has 8 divisors (see below), whose sum is σ = 252374400. Its totient is φ = 188774880.

The previous prime is 220532447. The next prime is 220532491. The reversal of 220532473 is 374235022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220532473 - 225 = 186978041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220532573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15373 + ... + 26026.

It is an arithmetic number, because the mean of its divisors is an integer number (31546800).

Almost surely, 2220532473 is an apocalyptic number.

It is an amenable number.

220532473 is a deficient number, since it is larger than the sum of its proper divisors (31841927).

220532473 is an equidigital number, since it uses as much as digits as its factorization.

220532473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42167.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 220532473 is about 14850.3357874494. The cubic root of 220532473 is about 604.1677174478.

Adding to 220532473 its reverse (374235022), we get a palindrome (594767495).

The spelling of 220532473 in words is "two hundred twenty million, five hundred thirty-two thousand, four hundred seventy-three".

Divisors: 1 7 761 5327 41399 289793 31504639 220532473