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48728220 = 2235812137
BaseRepresentation
bin1011100111100…
…0100010011100
310101200122112220
42321320202130
544433300340
64500225340
71131116532
oct271704234
9111618486
1048728220
1125562262
121439b250
13a131588
146686152
154427ed0
hex2e7889c

48728220 has 24 divisors (see below), whose sum is σ = 136439184. Its totient is φ = 12994176.

The previous prime is 48728219. The next prime is 48728231. The reversal of 48728220 is 2282784.

48728220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 406009 + ... + 406128.

It is an arithmetic number, because the mean of its divisors is an integer number (5684966).

Almost surely, 248728220 is an apocalyptic number.

It is an amenable number.

48728220 is an abundant number, since it is smaller than the sum of its proper divisors (87710964).

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

48728220 is a wasteful number, since it uses less digits than its factorization.

48728220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812149 (or 812147 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 48728220 is about 6980.5601494436. The cubic root of 48728220 is about 365.2527679302.

The spelling of 48728220 in words is "forty-eight million, seven hundred twenty-eight thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 812137 1624274 2436411 3248548 4060685 4872822 8121370 9745644 12182055 16242740 24364110 48728220