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48809009 = 173307919
BaseRepresentation
bin1011101000110…
…0010000110001
310101211202101002
42322030100301
544443342014
64502051345
71131604214
oct272142061
9111752332
1048809009
1125607a27
1214419b55
13a15c292
1466a777b
154441dde
hex2e8c431

48809009 has 8 divisors (see below), whose sum is σ = 49304640. Its totient is φ = 48316176.

The previous prime is 48808993. The next prime is 48809011. The reversal of 48809009 is 90090884.

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 48809009 - 24 = 48808993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48809029) 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, 52652 + ... + 53570.

It is an arithmetic number, because the mean of its divisors is an integer number (6163080).

Almost surely, 248809009 is an apocalyptic number.

It is an amenable number.

48809009 is a deficient number, since it is larger than the sum of its proper divisors (495631).

48809009 is a wasteful number, since it uses less digits than its factorization.

48809009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 48809009 is about 6986.3444661711. The cubic root of 48809009 is about 365.4545135378.

The spelling of 48809009 in words is "forty-eight million, eight hundred nine thousand, nine".

Divisors: 1 173 307 919 53111 158987 282133 48809009