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47840089 = 115418039
BaseRepresentation
bin1011011001111…
…1101101011001
310100000112021011
42312133231121
544221340324
64425213521
71120430323
oct266375531
9110015234
1047840089
1125005a70
12140312a1
139bb025b
1464d4613
1542eec94
hex2d9fb59

47840089 has 8 divisors (see below), whose sum is σ = 52292160. Its totient is φ = 43405200.

The previous prime is 47840087. The next prime is 47840113. The reversal of 47840089 is 98004874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47840089 - 21 = 47840087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47840083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932 + ... + 9970.

It is an arithmetic number, because the mean of its divisors is an integer number (6536520).

Almost surely, 247840089 is an apocalyptic number.

It is an amenable number.

47840089 is a deficient number, since it is larger than the sum of its proper divisors (4452071).

47840089 is a wasteful number, since it uses less digits than its factorization.

47840089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 47840089 is about 6916.6530200669. The cubic root of 47840089 is about 363.0200896025.

The spelling of 47840089 in words is "forty-seven million, eight hundred forty thousand, eighty-nine".

Divisors: 1 11 541 5951 8039 88429 4349099 47840089