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50788889 = 296132857
BaseRepresentation
bin1100000110111…
…1101000011001
310112120100020222
43001233220121
5101000221024
65012325425
71154461364
oct301575031
9115510228
1050788889
112673a498
1215013875
13a6a34c8
146a610db
1546d385e
hex306fa19

50788889 has 8 divisors (see below), whose sum is σ = 52644360. Its totient is φ = 48940416.

The previous prime is 50788883. The next prime is 50788897. The reversal of 50788889 is 98888705.

50788889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 846400 + 49942489 = 920^2 + 7067^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 50788889 - 216 = 50723353 is a prime.

It is a super-2 number, since 2×507888892 = 5159022491708642, which contains 22 as substring.

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 50788889.

It is not an unprimeable number, because it can be changed into a prime (50788883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16349 + ... + 19205.

It is an arithmetic number, because the mean of its divisors is an integer number (6580545).

Almost surely, 250788889 is an apocalyptic number.

It is an amenable number.

50788889 is a deficient number, since it is larger than the sum of its proper divisors (1855471).

50788889 is a wasteful number, since it uses less digits than its factorization.

50788889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499.

The product of its (nonzero) digits is 1290240, while the sum is 53.

The square root of 50788889 is about 7126.6323744108. The cubic root of 50788889 is about 370.3305762414.

The spelling of 50788889 in words is "fifty million, seven hundred eighty-eight thousand, eight hundred eighty-nine".

Divisors: 1 29 613 2857 17777 82853 1751341 50788889