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50318069 = 462110889
BaseRepresentation
bin1011111111110…
…0101011110101
310111200102102012
42333330223311
5100340134234
64554254005
71150460624
oct277745365
9114612365
1050318069
112644878a
1214a27305
13a56a109
14697b6bb
15463e0ce
hex2ffcaf5

50318069 has 4 divisors (see below), whose sum is σ = 50333580. Its totient is φ = 50302560.

The previous prime is 50318063. The next prime is 50318077. The reversal of 50318069 is 96081305.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8236900 + 42081169 = 2870^2 + 6487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50318069 is a prime.

It is a super-2 number, since 2×503180692 = 5063816135777522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50318063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824 + ... + 10065.

It is an arithmetic number, because the mean of its divisors is an integer number (12583395).

Almost surely, 250318069 is an apocalyptic number.

It is an amenable number.

50318069 is a deficient number, since it is larger than the sum of its proper divisors (15511).

50318069 is a wasteful number, since it uses less digits than its factorization.

50318069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15510.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 50318069 is about 7093.5230316113. The cubic root of 50318069 is about 369.1826833669.

The spelling of 50318069 in words is "fifty million, three hundred eighteen thousand, sixty-nine".

Divisors: 1 4621 10889 50318069