Search a number
-
+
50047780 = 2252502389
BaseRepresentation
bin1011111011101…
…0101100100100
310111011200122111
42332322230210
5100303012110
64544410404
71145253616
oct276725444
9114150574
1050047780
1126283702
1214916a04
13a4a4093
14690adb6
1545d8e8a
hex2fbab24

50047780 has 12 divisors (see below), whose sum is σ = 105100380. Its totient is φ = 20019104.

The previous prime is 50047763. The next prime is 50047787. The reversal of 50047780 is 8774005.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19289664 + 30758116 = 4392^2 + 5546^2 .

It is not an unprimeable number, because it can be changed into a prime (50047787) 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, 1251175 + ... + 1251214.

It is an arithmetic number, because the mean of its divisors is an integer number (8758365).

Almost surely, 250047780 is an apocalyptic number.

It is an amenable number.

50047780 is an abundant number, since it is smaller than the sum of its proper divisors (55052600).

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

50047780 is a wasteful number, since it uses less digits than its factorization.

50047780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502398 (or 2502396 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 50047780 is about 7074.4455613143. The cubic root of 50047780 is about 368.5204611877.

The spelling of 50047780 in words is "fifty million, forty-seven thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2502389 5004778 10009556 12511945 25023890 50047780