Search a number
-
+
50837861 = 31252901
BaseRepresentation
bin1100000111101…
…1100101100101
310112122211102202
43001323211211
5101003302421
65013344245
71155054224
oct301734545
9115584382
1050837861
1126773268
1215038085
13a6bc899
146a74cbb
1546e310b
hex307b965

50837861 has 6 divisors (see below), whose sum is σ = 52531686. Its totient is φ = 49197000.

The previous prime is 50837833. The next prime is 50837867. The reversal of 50837861 is 16873805.

It can be written as a sum of positive squares in only one way, i.e., 50836900 + 961 = 7130^2 + 31^2 .

It is not a de Polignac number, because 50837861 - 218 = 50575717 is a prime.

It is a super-2 number, since 2×508378612 = 5168976222110642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50837867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25490 + ... + 27411.

It is an arithmetic number, because the mean of its divisors is an integer number (8755281).

Almost surely, 250837861 is an apocalyptic number.

It is an amenable number.

50837861 is a deficient number, since it is larger than the sum of its proper divisors (1693825).

50837861 is an equidigital number, since it uses as much as digits as its factorization.

50837861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52963 (or 52932 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 50837861 is about 7130.0673909859. The cubic root of 50837861 is about 370.4495655416.

The spelling of 50837861 in words is "fifty million, eight hundred thirty-seven thousand, eight hundred sixty-one".

Divisors: 1 31 961 52901 1639931 50837861