Search a number
-
+
730200581 = 1166381871
BaseRepresentation
bin101011100001011…
…111101000000101
31212220000000212222
4223201133220011
52443412404311
6200242422125
724044413445
oct5341375005
91786000788
10730200581
113451a7560
12184661945
13b8384766
146cd9a125
154418aadb
hex2b85fa05

730200581 has 4 divisors (see below), whose sum is σ = 796582464. Its totient is φ = 663818700.

The previous prime is 730200539. The next prime is 730200613. The reversal of 730200581 is 185002037.

730200581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 730200581 - 210 = 730199557 is a prime.

It is a super-2 number, since 2×7302005812 = 1066385776985475122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 730200581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730200511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33190925 + ... + 33190946.

It is an arithmetic number, because the mean of its divisors is an integer number (199145616).

Almost surely, 2730200581 is an apocalyptic number.

It is an amenable number.

730200581 is a deficient number, since it is larger than the sum of its proper divisors (66381883).

730200581 is a wasteful number, since it uses less digits than its factorization.

730200581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66381882.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 730200581 is about 27022.2238352065. The cubic root of 730200581 is about 900.4937952792.

The spelling of 730200581 in words is "seven hundred thirty million, two hundred thousand, five hundred eighty-one".

Divisors: 1 11 66381871 730200581