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47222071 = 1315532339
BaseRepresentation
bin1011010000100…
…0110100110111
310021212010111121
42310020310313
544042101241
64404044411
71112244451
oct264106467
9107763447
1047222071
1124723706
1213993707
139a24b70
1463b32d1
15422bad1
hex2d08d37

47222071 has 8 divisors (see below), whose sum is σ = 50909040. Its totient is φ = 43542912.

The previous prime is 47222057. The next prime is 47222081. The reversal of 47222071 is 17022274.

47222071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47222071 - 27 = 47221943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47222051) 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 7 ways as a sum of consecutive naturals, for example, 19020 + ... + 21358.

It is an arithmetic number, because the mean of its divisors is an integer number (6363630).

Almost surely, 247222071 is an apocalyptic number.

47222071 is a deficient number, since it is larger than the sum of its proper divisors (3686969).

47222071 is a wasteful number, since it uses less digits than its factorization.

47222071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 47222071 is about 6871.8317063211. The cubic root of 47222071 is about 361.4500950440.

The spelling of 47222071 in words is "forty-seven million, two hundred twenty-two thousand, seventy-one".

Divisors: 1 13 1553 2339 20189 30407 3632467 47222071