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730220 = 225291259
BaseRepresentation
bin10110010010001101100
31101002200012
42302101230
5141331340
623352352
76130631
oct2622154
91332605
10730220
11459697
122b26b8
131c74aa
14150188
15e6565
hexb246c

730220 has 24 divisors (see below), whose sum is σ = 1587600. Its totient is φ = 281792.

The previous prime is 730217. The next prime is 730237. The reversal of 730220 is 22037.

It is a junction number, because it is equal to n+sod(n) for n = 730195 and 730204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50 + ... + 1209.

It is an arithmetic number, because the mean of its divisors is an integer number (66150).

2730220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793800).

730220 is an abundant number, since it is smaller than the sum of its proper divisors (857380).

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

730220 is a wasteful number, since it uses less digits than its factorization.

730220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 730220 is about 854.5291100951. The cubic root of 730220 is about 90.0501777805.

Adding to 730220 its reverse (22037), we get a palindrome (752257).

The spelling of 730220 in words is "seven hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 1259 2518 5036 6295 12590 25180 36511 73022 146044 182555 365110 730220