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47397013 = 974431103
BaseRepresentation
bin1011010011001…
…1100010010101
310022012000110221
42310303202111
544113201023
64411514341
71113603466
oct264634225
9108160427
1047397013
1124833094
1213a589b1
139a86691
14641ad6d
15426385d
hex2d33895

47397013 has 8 divisors (see below), whose sum is σ = 48037248. Its totient is φ = 46760064.

The previous prime is 47397011. The next prime is 47397017. The reversal of 47397013 is 31079374.

47397013 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 47397013 - 21 = 47397011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47397013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47397011) 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, 42420 + ... + 43522.

It is an arithmetic number, because the mean of its divisors is an integer number (6004656).

Almost surely, 247397013 is an apocalyptic number.

It is an amenable number.

47397013 is a deficient number, since it is larger than the sum of its proper divisors (640235).

47397013 is a wasteful number, since it uses less digits than its factorization.

47397013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 47397013 is about 6884.5488595840. The cubic root of 47397013 is about 361.8958956060.

The spelling of 47397013 in words is "forty-seven million, three hundred ninety-seven thousand, thirteen".

Divisors: 1 97 443 1103 42971 106991 488629 47397013