Search a number
-
+
48817081 = 175354181
BaseRepresentation
bin1011101000111…
…0001110111001
310101212011110001
42322032032321
544444121311
64502153001
71131636565
oct272161671
9111764401
1048817081
1125612aa5
1214422761
13a162b61
1466aa6a5
1544444c1
hex2e8e3b9

48817081 has 8 divisors (see below), whose sum is σ = 52664904. Its totient is φ = 45077760.

The previous prime is 48817079. The next prime is 48817103. The reversal of 48817081 is 18071884.

48817081 = 49402 + 49412.

It can be written as a sum of positive squares in 4 ways, for example, as 4141225 + 44675856 = 2035^2 + 6684^2 .

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 48817081 - 21 = 48817079 is a prime.

It is a super-2 number, since 2×488170812 = 4766214794721122, which contains 22 as substring.

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 48817081.

It is not an unprimeable number, because it can be changed into a prime (48817051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26190 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (6583113).

Almost surely, 248817081 is an apocalyptic number.

48817081 is the 4941-st centered square number.

It is an amenable number.

48817081 is a deficient number, since it is larger than the sum of its proper divisors (3847823).

48817081 is a wasteful number, since it uses less digits than its factorization.

48817081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54251.

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 48817081 is about 6986.9221406854. The cubic root of 48817081 is about 365.4746586318.

The spelling of 48817081 in words is "forty-eight million, eight hundred seventeen thousand, eighty-one".

Divisors: 1 17 53 901 54181 921077 2871593 48817081