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48889081 = 283317257
BaseRepresentation
bin1011101001111…
…1110011111001
310101222211012201
42322133303321
5100003422311
64503510201
71132356523
oct272376371
9111884181
1048889081
11256620aa
1214458361
13a189867
1466c8a13
15445a9c1
hex2e9fcf9

48889081 has 4 divisors (see below), whose sum is σ = 48909172. Its totient is φ = 48868992.

The previous prime is 48889063. The next prime is 48889129. The reversal of 48889081 is 18098884.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8503056 + 40386025 = 2916^2 + 6355^2 .

It is a cyclic number.

It is not a de Polignac number, because 48889081 - 213 = 48880889 is a prime.

It is a super-2 number, since 2×488890812 = 4780284482049122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48889051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5796 + ... + 11461.

It is an arithmetic number, because the mean of its divisors is an integer number (12227293).

Almost surely, 248889081 is an apocalyptic number.

It is an amenable number.

48889081 is a deficient number, since it is larger than the sum of its proper divisors (20091).

48889081 is a wasteful number, since it uses less digits than its factorization.

48889081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20090.

The product of its (nonzero) digits is 147456, while the sum is 46.

The square root of 48889081 is about 6992.0727255943. The cubic root of 48889081 is about 365.6542491126.

The spelling of 48889081 in words is "forty-eight million, eight hundred eighty-nine thousand, eighty-one".

Divisors: 1 2833 17257 48889081