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49270385 = 59854077
BaseRepresentation
bin1011101111110…
…0111001110001
310102201012021002
42323330321301
5100103123020
64520011345
71135535303
oct273747161
9112635232
1049270385
11258a262a
1214600b55
13a291298
146787973
1544d3975
hex2efce71

49270385 has 4 divisors (see below), whose sum is σ = 59124468. Its totient is φ = 39416304.

The previous prime is 49270381. The next prime is 49270387. The reversal of 49270385 is 58307294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58307294 = 229153647.

It can be written as a sum of positive squares in 2 ways, for example, as 14684224 + 34586161 = 3832^2 + 5881^2 .

It is a cyclic number.

It is not a de Polignac number, because 49270385 - 22 = 49270381 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49270381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4927034 + ... + 4927043.

It is an arithmetic number, because the mean of its divisors is an integer number (14781117).

Almost surely, 249270385 is an apocalyptic number.

It is an amenable number.

49270385 is a deficient number, since it is larger than the sum of its proper divisors (9854083).

49270385 is an equidigital number, since it uses as much as digits as its factorization.

49270385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9854082.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 49270385 is about 7019.2866446670. The cubic root of 49270385 is about 366.6024125241.

The spelling of 49270385 in words is "forty-nine million, two hundred seventy thousand, three hundred eighty-five".

Divisors: 1 5 9854077 49270385