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48722420 = 2252436121
BaseRepresentation
bin1011100111011…
…1000111110100
310101200100121002
42321313013310
544433104140
64500142432
71131063605
oct271670764
9111610532
1048722420
112555896a
1214397a18
13a12ba46
146683dac
154426415
hex2e771f4

48722420 has 12 divisors (see below), whose sum is σ = 102317124. Its totient is φ = 19488960.

The previous prime is 48722389. The next prime is 48722431. The reversal of 48722420 is 2422784.

It can be written as a sum of positive squares in 2 ways, for example, as 31764496 + 16957924 = 5636^2 + 4118^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218041 + ... + 1218080.

It is an arithmetic number, because the mean of its divisors is an integer number (8526427).

Almost surely, 248722420 is an apocalyptic number.

It is an amenable number.

48722420 is an abundant number, since it is smaller than the sum of its proper divisors (53594704).

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

48722420 is a wasteful number, since it uses less digits than its factorization.

48722420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436130 (or 2436128 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 48722420 is about 6980.1446976406. The cubic root of 48722420 is about 365.2382756428.

The spelling of 48722420 in words is "forty-eight million, seven hundred twenty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2436121 4872242 9744484 12180605 24361210 48722420