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47375489 = 76767927
BaseRepresentation
bin1011010010111…
…0010010000001
310022010220221202
42310232102001
544112003424
64411230545
71113453650
oct264562201
9108126852
1047375489
11248189a7
1213a48455
139a79945
146413197
15425c2ae
hex2d2e481

47375489 has 4 divisors (see below), whose sum is σ = 54143424. Its totient is φ = 40607556.

The previous prime is 47375453. The next prime is 47375491. The reversal of 47375489 is 98457374.

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 47375489 - 212 = 47371393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47375789) 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, 3383957 + ... + 3383970.

It is an arithmetic number, because the mean of its divisors is an integer number (13535856).

Almost surely, 247375489 is an apocalyptic number.

It is an amenable number.

47375489 is a deficient number, since it is larger than the sum of its proper divisors (6767935).

47375489 is an equidigital number, since it uses as much as digits as its factorization.

47375489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6767934.

The product of its digits is 846720, while the sum is 47.

The square root of 47375489 is about 6882.9854714361. The cubic root of 47375489 is about 361.8411057491.

The spelling of 47375489 in words is "forty-seven million, three hundred seventy-five thousand, four hundred eighty-nine".

Divisors: 1 7 6767927 47375489