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48812569 = 1331121123
BaseRepresentation
bin1011101000110…
…1001000011001
310101211221020221
42322031020121
544444000234
64502120041
71131620461
oct272151031
9111757227
1048812569
112560a673
1214420021
13a160aa0
1466a8ba1
154442eb4
hex2e8d219

48812569 has 8 divisors (see below), whose sum is σ = 54263552. Its totient is φ = 43603920.

The previous prime is 48812567. The next prime is 48812573. The reversal of 48812569 is 96521884.

It is a happy number.

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 48812569 - 21 = 48812567 is a prime.

It is a super-2 number, since 2×488125692 = 4765333784759522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48812563) 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, 60159 + ... + 60964.

It is an arithmetic number, because the mean of its divisors is an integer number (6782944).

Almost surely, 248812569 is an apocalyptic number.

It is an amenable number.

48812569 is a deficient number, since it is larger than the sum of its proper divisors (5450983).

48812569 is a wasteful number, since it uses less digits than its factorization.

48812569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121167.

The product of its digits is 138240, while the sum is 43.

The square root of 48812569 is about 6986.5992442676. The cubic root of 48812569 is about 365.4633984169.

The spelling of 48812569 in words is "forty-eight million, eight hundred twelve thousand, five hundred sixty-nine".

Divisors: 1 13 31 403 121123 1574599 3754813 48812569