Search a number
-
+
50744489 = 311636919
BaseRepresentation
bin1100000110010…
…0110010101001
310112111002100112
43001210302221
5100442310424
65011344105
71154215055
oct301446251
9115432315
1050744489
112670a0a4
1214bb2035
13a689233
146a4cc65
1546c560e
hex3064ca9

50744489 has 4 divisors (see below), whose sum is σ = 52381440. Its totient is φ = 49107540.

The previous prime is 50744471. The next prime is 50744539. The reversal of 50744489 is 98444705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50744489 - 224 = 33967273 is a prime.

It is a super-2 number, since 2×507444892 = 5150006327742242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50744989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818429 + ... + 818490.

It is an arithmetic number, because the mean of its divisors is an integer number (13095360).

Almost surely, 250744489 is an apocalyptic number.

It is an amenable number.

50744489 is a deficient number, since it is larger than the sum of its proper divisors (1636951).

50744489 is a wasteful number, since it uses less digits than its factorization.

50744489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636950.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 50744489 is about 7123.5166175141. The cubic root of 50744489 is about 370.2226295909. Note that the first 3 decimals are identical.

The spelling of 50744489 in words is "fifty million, seven hundred forty-four thousand, four hundred eighty-nine".

Divisors: 1 31 1636919 50744489