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50112001 = 58818521
BaseRepresentation
bin1011111100101…
…0011000000001
310111021221202001
42333022120001
5100312041001
64550024001
71145642062
oct277123001
9114257661
1050112001
1126317985
1214948001
13a4c7394
146926569
1545ed001
hex2fca601

50112001 has 4 divisors (see below), whose sum is σ = 50126404. Its totient is φ = 50097600.

The previous prime is 50111993. The next prime is 50112017. The reversal of 50112001 is 10021105.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 33628401 + 16483600 = 5799^2 + 4060^2 .

It is a cyclic number.

It is not a de Polignac number, because 50112001 - 23 = 50111993 is a prime.

It is a super-2 number, since 2×501120012 = 5022425288448002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50112061) 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, 1621 + ... + 10141.

It is an arithmetic number, because the mean of its divisors is an integer number (12531601).

Almost surely, 250112001 is an apocalyptic number.

It is an amenable number.

50112001 is a deficient number, since it is larger than the sum of its proper divisors (14403).

50112001 is an equidigital number, since it uses as much as digits as its factorization.

50112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14402.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 50112001 is about 7078.9830484329. The cubic root of 50112001 is about 368.6780215347.

Adding to 50112001 its reverse (10021105), we get a palindrome (60133106).

The spelling of 50112001 in words is "fifty million, one hundred twelve thousand, one".

Divisors: 1 5881 8521 50112001