Search a number
-
+
47044689 = 31011391117
BaseRepresentation
bin1011001101110…
…1100001010001
310021112010011220
42303131201101
544020412224
64400155253
71110605346
oct263354121
9107463156
1047044689
112461240a
1213908b29
1399921c3
1463687cd
1541e4279
hex2cdd851

47044689 has 16 divisors (see below), whose sum is σ = 63860160. Its totient is φ = 30801600.

The previous prime is 47044681. The next prime is 47044691. The reversal of 47044689 is 98644074.

47044689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47044689 - 23 = 47044681 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47044689.

It is not an unprimeable number, because it can be changed into a prime (47044681) 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 15 ways as a sum of consecutive naturals, for example, 41559 + ... + 42675.

It is an arithmetic number, because the mean of its divisors is an integer number (3991260).

Almost surely, 247044689 is an apocalyptic number.

It is an amenable number.

47044689 is a deficient number, since it is larger than the sum of its proper divisors (16815471).

47044689 is a wasteful number, since it uses less digits than its factorization.

47044689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 47044689 is about 6858.9131063165. The cubic root of 47044689 is about 360.9969510924.

The spelling of 47044689 in words is "forty-seven million, forty-four thousand, six hundred eighty-nine".

Divisors: 1 3 101 139 303 417 1117 3351 14039 42117 112817 155263 338451 465789 15681563 47044689