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50240309 = 754713121
BaseRepresentation
bin1011111110100…
…1101100110101
310111112110202012
42333221230311
5100330142214
64552454005
71150015130
oct277515465
9114473665
1050240309
11263a5319
12149aa305
13a5408c2
14695b217
15462603e
hex2fe9b35

50240309 has 8 divisors (see below), whose sum is σ = 57526848. Its totient is φ = 42981120.

The previous prime is 50240269. The next prime is 50240317. The reversal of 50240309 is 90304205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-50240309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50240369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2732 + ... + 10389.

It is an arithmetic number, because the mean of its divisors is an integer number (7190856).

Almost surely, 250240309 is an apocalyptic number.

It is an amenable number.

50240309 is a deficient number, since it is larger than the sum of its proper divisors (7286539).

50240309 is a wasteful number, since it uses less digits than its factorization.

50240309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13675.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 50240309 is about 7088.0398559828. The cubic root of 50240309 is about 368.9924107888.

The spelling of 50240309 in words is "fifty million, two hundred forty thousand, three hundred nine".

Divisors: 1 7 547 3829 13121 91847 7177187 50240309