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48919009 = 1072811627
BaseRepresentation
bin1011101010011…
…1000111100001
310102001100021011
42322213013201
5100010402014
64504300521
71132543006
oct272470741
9112040234
1048919009
1125682637
1214471741
13a19a379
1466d58ad
1544647c4
hex2ea71e1

48919009 has 8 divisors (see below), whose sum is σ = 49582368. Its totient is φ = 48259680.

The previous prime is 48919007. The next prime is 48919021. The reversal of 48919009 is 90091984.

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 48919009 - 21 = 48919007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48919007) 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, 29254 + ... + 30880.

It is an arithmetic number, because the mean of its divisors is an integer number (6197796).

Almost surely, 248919009 is an apocalyptic number.

It is an amenable number.

48919009 is a deficient number, since it is larger than the sum of its proper divisors (663359).

48919009 is a wasteful number, since it uses less digits than its factorization.

48919009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 48919009 is about 6994.2125360901. The cubic root of 48919009 is about 365.7288470111.

The spelling of 48919009 in words is "forty-eight million, nine hundred nineteen thousand, nine".

Divisors: 1 107 281 1627 30067 174089 457187 48919009