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50022989 = 612293581
BaseRepresentation
bin1011111011010…
…0101001001101
310111010102122022
42332310221031
5100301213424
64544055525
71145121422
oct276645115
9114112568
1050022989
1126267015
12149045a5
13a495a03
146901d49
1545d195e
hex2fb4a4d

50022989 has 8 divisors (see below), whose sum is σ = 51079320. Its totient is φ = 48974400.

The previous prime is 50022961. The next prime is 50023009. The reversal of 50022989 is 98922005.

It can be written as a sum of positive squares in 4 ways, for example, as 14822500 + 35200489 = 3850^2 + 5933^2 .

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 50022989 - 220 = 48974413 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 (50022919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12179 + ... + 15759.

It is an arithmetic number, because the mean of its divisors is an integer number (6384915).

Almost surely, 250022989 is an apocalyptic number.

It is an amenable number.

50022989 is a deficient number, since it is larger than the sum of its proper divisors (1056331).

50022989 is a wasteful number, since it uses less digits than its factorization.

50022989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 50022989 is about 7072.6931928368. The cubic root of 50022989 is about 368.4596026797.

The spelling of 50022989 in words is "fifty million, twenty-two thousand, nine hundred eighty-nine".

Divisors: 1 61 229 3581 13969 218441 820049 50022989