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50252291 = 191263101
BaseRepresentation
bin1011111110110…
…0101000000011
310111120002011222
42333230220003
5100331033131
64553025255
71150065065
oct277545003
9114502158
1050252291
1126403321
12149b522b
13a5461ab
146961735
15462987b
hex2feca03

50252291 has 4 divisors (see below), whose sum is σ = 50515584. Its totient is φ = 49989000.

The previous prime is 50252269. The next prime is 50252299. The reversal of 50252291 is 19225205.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19225205 = 53845041.

It is a cyclic number.

It is not a de Polignac number, because 50252291 - 214 = 50235907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50252291.

It is not an unprimeable number, because it can be changed into a prime (50252299) 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, 131360 + ... + 131741.

It is an arithmetic number, because the mean of its divisors is an integer number (12628896).

Almost surely, 250252291 is an apocalyptic number.

50252291 is a deficient number, since it is larger than the sum of its proper divisors (263293).

50252291 is a wasteful number, since it uses less digits than its factorization.

50252291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263292.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 50252291 is about 7088.8850322177. The cubic root of 50252291 is about 369.0217425858.

Adding to 50252291 its reverse (19225205), we get a palindrome (69477496).

The spelling of 50252291 in words is "fifty million, two hundred fifty-two thousand, two hundred ninety-one".

Divisors: 1 191 263101 50252291