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50043032209 = 172131592
BaseRepresentation
bin101110100110110011…
…000001001010010001
311210011120210102201101
4232212303001022101
51304442004012314
634553415504401
73421053520042
oct564663011221
9153146712641
1050043032209
111a24aa94865
129847388101
134946958781
1425ca3328c9
15147d545174
hexba6cc1291

50043032209 has 9 divisors (see below), whose sum is σ = 53163939387. Its totient is φ = 47095745184.

The previous prime is 50043032153. The next prime is 50043032227. The reversal of 50043032209 is 90223034005.

The square root of 50043032209 is 223703.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 38960838225 + 11082193984 = 197385^2 + 105272^2 .

It is not a de Polignac number, because 50043032209 - 29 = 50043031697 is a prime.

It is a super-2 number, since 2×500430322092 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50043032239) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3796372 + ... + 3809530.

Almost surely, 250043032209 is an apocalyptic number.

50043032209 is the 223703-rd square number.

50043032209 is the 111852-nd centered octagonal number.

It is an amenable number.

50043032209 is a deficient number, since it is larger than the sum of its proper divisors (3120907178).

50043032209 is an frugal number, since it uses more digits than its factorization.

50043032209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26352 (or 13176 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The spelling of 50043032209 in words is "fifty billion, forty-three million, thirty-two thousand, two hundred nine".

Divisors: 1 17 289 13159 223703 3802951 173159281 2943707777 50043032209