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47889764 = 2213920957
BaseRepresentation
bin1011011010101…
…1110101100100
310100010001101222
42312223311210
544224433024
64430235512
71121025206
oct266536544
9110101358
1047889764
112503a31a
1214055b98
139bc9a50
146508776
15430e85e
hex2dabd64

47889764 has 12 divisors (see below), whose sum is σ = 90253884. Its totient is φ = 22102944.

The previous prime is 47889733. The next prime is 47889767. The reversal of 47889764 is 46798874.

It can be written as a sum of positive squares in 2 ways, for example, as 6801664 + 41088100 = 2608^2 + 6410^2 .

It is not an unprimeable number, because it can be changed into a prime (47889767) 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, 460427 + ... + 460530.

It is an arithmetic number, because the mean of its divisors is an integer number (7521157).

Almost surely, 247889764 is an apocalyptic number.

It is an amenable number.

47889764 is a deficient number, since it is larger than the sum of its proper divisors (42364120).

47889764 is a wasteful number, since it uses less digits than its factorization.

47889764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920974 (or 920972 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 47889764 is about 6920.2430593152. The cubic root of 47889764 is about 363.1456940580.

The spelling of 47889764 in words is "forty-seven million, eight hundred eighty-nine thousand, seven hundred sixty-four".

Divisors: 1 2 4 13 26 52 920957 1841914 3683828 11972441 23944882 47889764