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50890120 = 2351272253
BaseRepresentation
bin1100001000100…
…0010110001000
310112202111010021
43002020112020
5101011440440
65014430224
71155362461
oct302102610
9115674107
1050890120
11267a9556
1215062374
13a70a5c8
146a89d68
15470384a
hex3088588

50890120 has 16 divisors (see below), whose sum is σ = 114502860. Its totient is φ = 20356032.

The previous prime is 50890117. The next prime is 50890121. The reversal of 50890120 is 2109805.

It can be written as a sum of positive squares in 2 ways, for example, as 43480836 + 7409284 = 6594^2 + 2722^2 .

It is a super-2 number, since 2×508901202 = 5179608627228800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50890121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636087 + ... + 636166.

Almost surely, 250890120 is an apocalyptic number.

It is an amenable number.

50890120 is an abundant number, since it is smaller than the sum of its proper divisors (63612740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50890120 is a wasteful number, since it uses less digits than its factorization.

50890120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272264 (or 1272260 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 50890120 is about 7133.7311415556. The cubic root of 50890120 is about 370.5764571519.

Adding to 50890120 its reverse (2109805), we get a palindrome (52999925).

The spelling of 50890120 in words is "fifty million, eight hundred ninety thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1272253 2544506 5089012 6361265 10178024 12722530 25445060 50890120