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47858057 = 133799497
BaseRepresentation
bin1011011010010…
…0000110001001
310100001102220122
42312210012021
544222424212
64425433025
71120533602
oct266440611
9110042818
1047858057
1125018515
121403b775
139bb84a0
1464dada9
154305272
hex2da4189

47858057 has 8 divisors (see below), whose sum is σ = 52932936. Its totient is φ = 42982272.

The previous prime is 47858053. The next prime is 47858071. The reversal of 47858057 is 75085874.

It can be written as a sum of positive squares in 4 ways, for example, as 9616201 + 38241856 = 3101^2 + 6184^2 .

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 47858057 - 22 = 47858053 is a prime.

It is a super-3 number, since 3×478580573 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47857999 and 47858017.

It is not an unprimeable number, because it can be changed into a prime (47858051) 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, 49268 + ... + 50229.

It is an arithmetic number, because the mean of its divisors is an integer number (6616617).

Almost surely, 247858057 is an apocalyptic number.

It is an amenable number.

47858057 is a deficient number, since it is larger than the sum of its proper divisors (5074879).

47858057 is a wasteful number, since it uses less digits than its factorization.

47858057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99547.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 47858057 is about 6917.9517922576. The cubic root of 47858057 is about 363.0655321637.

The spelling of 47858057 in words is "forty-seven million, eight hundred fifty-eight thousand, fifty-seven".

Divisors: 1 13 37 481 99497 1293461 3681389 47858057