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50889757 = 73968863
BaseRepresentation
bin1100001000100…
…0010000011101
310112202110121211
43002020100131
5101011433012
65014424421
71155361432
oct302102035
9115673554
1050889757
11267a9256
1215062111
13a70a3a9
146a89b89
1547036a7
hex308841d

50889757 has 4 divisors (see below), whose sum is σ = 50959360. Its totient is φ = 50820156.

The previous prime is 50889749. The next prime is 50889791. The reversal of 50889757 is 75798805.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75798805 = 515159761.

It is a cyclic number.

It is not a de Polignac number, because 50889757 - 23 = 50889749 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 50889757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50889257) 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, 33693 + ... + 35170.

It is an arithmetic number, because the mean of its divisors is an integer number (12739840).

Almost surely, 250889757 is an apocalyptic number.

It is an amenable number.

50889757 is a deficient number, since it is larger than the sum of its proper divisors (69603).

50889757 is an equidigital number, since it uses as much as digits as its factorization.

50889757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69602.

The product of its (nonzero) digits is 705600, while the sum is 49.

The square root of 50889757 is about 7133.7056990038. The cubic root of 50889757 is about 370.5755760406.

The spelling of 50889757 in words is "fifty million, eight hundred eighty-nine thousand, seven hundred fifty-seven".

Divisors: 1 739 68863 50889757