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47220893 = 617110903
BaseRepresentation
bin1011010000100…
…0100010011101
310021212001212222
42310020202131
544042032033
64404035125
71112241146
oct264104235
9107761788
1047220893
1124722835
1213992aa5
139a24475
1463b2acd
15422b598
hex2d0889d

47220893 has 8 divisors (see below), whose sum is σ = 48675456. Its totient is φ = 45788400.

The previous prime is 47220839. The next prime is 47220949. The reversal of 47220893 is 39802274.

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 47220893 - 210 = 47219869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47220293) 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 7 ways as a sum of consecutive naturals, for example, 1121 + ... + 9782.

It is an arithmetic number, because the mean of its divisors is an integer number (6084432).

Almost surely, 247220893 is an apocalyptic number.

It is an amenable number.

47220893 is a deficient number, since it is larger than the sum of its proper divisors (1454563).

47220893 is a wasteful number, since it uses less digits than its factorization.

47220893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11035.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 47220893 is about 6871.7459935594. The cubic root of 47220893 is about 361.4470894455.

The spelling of 47220893 in words is "forty-seven million, two hundred twenty thousand, eight hundred ninety-three".

Divisors: 1 61 71 4331 10903 665083 774113 47220893