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720630050 = 252716712329
BaseRepresentation
bin101010111100111…
…111000100100010
31212012222210120212
4222330333010202
52433440130200
6155301334122
723600153150
oct5274770442
91765883525
10720630050
1133a860028
12181407342
13b63b351a
146b9c83d0
15433ea035
hex2af3f122

720630050 has 48 divisors (see below), whose sum is σ = 1541151360. Its totient is φ = 245573760.

The previous prime is 720630037. The next prime is 720630059. The reversal of 720630050 is 50036027.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 720629998 and 720630025.

It is not an unprimeable number, because it can be changed into a prime (720630059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52286 + ... + 64614.

It is an arithmetic number, because the mean of its divisors is an integer number (32107320).

Almost surely, 2720630050 is an apocalyptic number.

720630050 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

720630050 is an abundant number, since it is smaller than the sum of its proper divisors (820521310).

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

720630050 is a wasteful number, since it uses less digits than its factorization.

720630050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12515 (or 12510 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 720630050 is about 26844.5534513055. The cubic root of 720630050 is about 896.5423091144.

Adding to 720630050 its reverse (50036027), we get a palindrome (770666077).

The spelling of 720630050 in words is "seven hundred twenty million, six hundred thirty thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 167 175 334 350 835 1169 1670 2338 4175 5845 8350 11690 12329 24658 29225 58450 61645 86303 123290 172606 308225 431515 616450 863030 2058943 2157575 4117886 4315150 10294715 14412601 20589430 28825202 51473575 72063005 102947150 144126010 360315025 720630050