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50111317 = 61821497
BaseRepresentation
bin1011111100101…
…0001101010101
310111021220210201
42333022031111
5100312030232
64550020501
71145640064
oct277121525
9114256721
1050111317
1126317413
1214947731
13a4c6c89
1469261db
1545ecbe7
hex2fca355

50111317 has 4 divisors (see below), whose sum is σ = 50932876. Its totient is φ = 49289760.

The previous prime is 50111309. The next prime is 50111323. The reversal of 50111317 is 71311105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9036036 + 41075281 = 3006^2 + 6409^2 .

It is a cyclic number.

It is not a de Polignac number, because 50111317 - 23 = 50111309 is a prime.

It is a super-2 number, since 2×501113172 = 5022288182948978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50111294 and 50111303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50111387) 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, 410688 + ... + 410809.

It is an arithmetic number, because the mean of its divisors is an integer number (12733219).

Almost surely, 250111317 is an apocalyptic number.

It is an amenable number.

50111317 is a deficient number, since it is larger than the sum of its proper divisors (821559).

50111317 is an equidigital number, since it uses as much as digits as its factorization.

50111317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821558.

The product of its (nonzero) digits is 105, while the sum is 19.

The square root of 50111317 is about 7078.9347362439. The cubic root of 50111317 is about 368.6763441127.

It can be divided in two parts, 5011 and 1317, that added together give a triangular number (6328 = T112).

The spelling of 50111317 in words is "fifty million, one hundred eleven thousand, three hundred seventeen".

Divisors: 1 61 821497 50111317