Search a number
-
+
50287780 = 2252514389
BaseRepresentation
bin1011111111010…
…1010010100100
310111121212212101
42333311102210
5100333202110
64553501444
71150303414
oct277652244
9114555771
1050287780
1126427a54
1214a11884
13a5593aa
146970644
15463513a
hex2ff54a4

50287780 has 12 divisors (see below), whose sum is σ = 105604380. Its totient is φ = 20115104.

The previous prime is 50287763. The next prime is 50287781. The reversal of 50287780 is 8778205.

It can be written as a sum of positive squares in 2 ways, for example, as 31832164 + 18455616 = 5642^2 + 4296^2 .

It is not an unprimeable number, because it can be changed into a prime (50287781) 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, 1257175 + ... + 1257214.

It is an arithmetic number, because the mean of its divisors is an integer number (8800365).

Almost surely, 250287780 is an apocalyptic number.

It is an amenable number.

50287780 is an abundant number, since it is smaller than the sum of its proper divisors (55316600).

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

50287780 is a wasteful number, since it uses less digits than its factorization.

50287780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514398 (or 2514396 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 50287780 is about 7091.3877344283. The cubic root of 50287780 is about 369.1085918992.

The spelling of 50287780 in words is "fifty million, two hundred eighty-seven thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2514389 5028778 10057556 12571945 25143890 50287780