Search a number
-
+
50261317 = 1094571009
BaseRepresentation
bin1011111110111…
…0110101000101
310111120112120021
42333232311011
5100331330232
64553135141
71150133311
oct277566505
9114515507
1050261317
112640a087
12149ba4b1
13a54a332
146964b41
15462c397
hex2feed45

50261317 has 8 divisors (see below), whose sum is σ = 50883800. Its totient is φ = 49641984.

The previous prime is 50261311. The next prime is 50261329. The reversal of 50261317 is 71316205.

It can be written as a sum of positive squares in 4 ways, for example, as 15992001 + 34269316 = 3999^2 + 5854^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50261317 - 211 = 50259269 is a prime.

It is a super-4 number, since 4×502613174 (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50261291 and 50261300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50261311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49309 + ... + 50317.

It is an arithmetic number, because the mean of its divisors is an integer number (6360475).

Almost surely, 250261317 is an apocalyptic number.

It is an amenable number.

50261317 is a deficient number, since it is larger than the sum of its proper divisors (622483).

50261317 is a wasteful number, since it uses less digits than its factorization.

50261317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 50261317 is about 7089.5216340738. The cubic root of 50261317 is about 369.0438350502.

The spelling of 50261317 in words is "fifty million, two hundred sixty-one thousand, three hundred seventeen".

Divisors: 1 109 457 1009 49813 109981 461113 50261317