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48909420 = 22345719227
BaseRepresentation
bin1011101010010…
…0110001101100
310102000212010000
42322210301230
5100010100140
64504144300
71132503030
oct272446154
9112025100
1048909420
112567640a
1214468090
13a195bb1
1466d21c0
154461a30
hex2ea4c6c

48909420 has 240 divisors, whose sum is σ = 185391360. Its totient is φ = 10544256.

The previous prime is 48909403. The next prime is 48909463. The reversal of 48909420 is 2490984.

It is a happy number.

48909420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 215347 + ... + 215573.

It is an arithmetic number, because the mean of its divisors is an integer number (772464).

Almost surely, 248909420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48909420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92695680).

48909420 is an abundant number, since it is smaller than the sum of its proper divisors (136481940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48909420 is a wasteful number, since it uses less digits than its factorization.

48909420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 48909420 is about 6993.5270071688. The cubic root of 48909420 is about 365.7049489862.

The spelling of 48909420 in words is "forty-eight million, nine hundred nine thousand, four hundred twenty".