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50112251 = 728911491
BaseRepresentation
bin1011111100101…
…0011011111011
310111021222002022
42333022123323
5100312043001
64550025055
71145642600
oct277123373
9114258068
1050112251
1126318092
121494818b
13a4c7527
1469266a7
1545ed11b
hex2fca6fb

50112251 has 12 divisors (see below), whose sum is σ = 58953960. Its totient is φ = 42467040.

The previous prime is 50112247. The next prime is 50112259. The reversal of 50112251 is 15221105.

It is not a de Polignac number, because 50112251 - 22 = 50112247 is a prime.

It is a super-2 number, since 2×501122512 = 5022475400574002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50112259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1385 + ... + 10106.

It is an arithmetic number, because the mean of its divisors is an integer number (4912830).

Almost surely, 250112251 is an apocalyptic number.

50112251 is a deficient number, since it is larger than the sum of its proper divisors (8841709).

50112251 is a wasteful number, since it uses less digits than its factorization.

50112251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11594 (or 11587 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 50112251 is about 7079.0007063144. Note that the first 3 decimals coincide. The cubic root of 50112251 is about 368.6786346237.

Adding to 50112251 its reverse (15221105), we get a palindrome (65333356).

The spelling of 50112251 in words is "fifty million, one hundred twelve thousand, two hundred fifty-one".

Divisors: 1 7 49 89 623 4361 11491 80437 563059 1022699 7158893 50112251