Search a number
-
+
80050730 = 2529276037
BaseRepresentation
bin1001100010101…
…11101000101010
312120121222221212
410301113220222
5130443110410
611535433122
71661264024
oct461275052
9176558855
1080050730
1141206331
12229857a2
131377a4c6
14a8bb014
157063b05
hex4c57a2a

80050730 has 16 divisors (see below), whose sum is σ = 149060520. Its totient is φ = 30916032.

The previous prime is 80050717. The next prime is 80050757. The reversal of 80050730 is 3705008.

80050730 = T208 + T209 + ... + T787.

It can be written as a sum of positive squares in 4 ways, for example, as 35868121 + 44182609 = 5989^2 + 6647^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80050696 and 80050705.

It is an unprimeable number.

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, 137729 + ... + 138308.

Almost surely, 280050730 is an apocalyptic number.

80050730 is a deficient number, since it is larger than the sum of its proper divisors (69009790).

80050730 is a wasteful number, since it uses less digits than its factorization.

80050730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276073.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 80050730 is about 8947.1073537764. The cubic root of 80050730 is about 430.9779974879.

Adding to 80050730 its reverse (3705008), we get a palindrome (83755738).

The spelling of 80050730 in words is "eighty million, fifty thousand, seven hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 276037 552074 1380185 2760370 8005073 16010146 40025365 80050730