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50912405 = 531912
BaseRepresentation
bin1100001000110…
…1110010010101
310112210121200122
43002031302111
5101013144110
65015121325
71155514445
oct302156225
9115717618
1050912405
1126814275
1215073245
13a7177ab
146a94125
15470a255
hex308dc95

50912405 has 6 divisors (see below), whose sum is σ = 61114038. Its totient is φ = 40717160.

The previous prime is 50912377. The next prime is 50912417. The reversal of 50912405 is 50421905.

It can be written as a sum of positive squares in only one way, i.e., 40729924 + 10182481 = 6382^2 + 3191^2 .

It is not a de Polignac number, because 50912405 - 26 = 50912341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14360 + ... + 17550.

It is an arithmetic number, because the mean of its divisors is an integer number (10185673).

Almost surely, 250912405 is an apocalyptic number.

It is an amenable number.

50912405 is a deficient number, since it is larger than the sum of its proper divisors (10201633).

50912405 is an frugal number, since it uses more digits than its factorization.

50912405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6387 (or 3196 counting only the distinct ones).

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

The square root of 50912405 is about 7135.2929162018. The cubic root of 50912405 is about 370.6305415936.

The spelling of 50912405 in words is "fifty million, nine hundred twelve thousand, four hundred five".

Divisors: 1 5 3191 15955 10182481 50912405