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47669897 = 116771911
BaseRepresentation
bin1011010111011…
…0001010001001
310022200212210202
42311312022021
544200414042
64421421545
71116121202
oct265661211
9108625722
1047669897
11249aa110
1213b6a8b5
139b50952
14648c5a9
1542b9632
hex2d76289

47669897 has 16 divisors (see below), whose sum is σ = 53581824. Its totient is φ = 42042000.

The previous prime is 47669873. The next prime is 47669899. The reversal of 47669897 is 79896674.

47669897 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 47669897 - 26 = 47669833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47669899) 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, 51872 + ... + 52782.

It is an arithmetic number, because the mean of its divisors is an integer number (3348864).

Almost surely, 247669897 is an apocalyptic number.

It is an amenable number.

47669897 is a deficient number, since it is larger than the sum of its proper divisors (5911927).

47669897 is a wasteful number, since it uses less digits than its factorization.

47669897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060.

The product of its digits is 4572288, while the sum is 56.

The square root of 47669897 is about 6904.3389980504. The cubic root of 47669897 is about 362.5890945494.

The spelling of 47669897 in words is "forty-seven million, six hundred sixty-nine thousand, eight hundred ninety-seven".

Divisors: 1 11 67 71 737 781 911 4757 10021 52327 61037 64681 671407 711491 4333627 47669897