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48192021 = 3245711717
BaseRepresentation
bin1011011111010…
…1101000010101
310100200102000200
42313311220111
544314121041
64440531113
71123424343
oct267655025
9110612020
1048192021
1125226419
1214180a99
139ca44b7
146586993
15436e1b6
hex2df5a15

48192021 has 12 divisors (see below), whose sum is σ = 69768972. Its totient is φ = 32054976.

The previous prime is 48192017. The next prime is 48192071. The reversal of 48192021 is 12029184.

It can be written as a sum of positive squares in 2 ways, for example, as 16719921 + 31472100 = 4089^2 + 5610^2 .

It is not a de Polignac number, because 48192021 - 22 = 48192017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48192071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1746 + ... + 9971.

It is an arithmetic number, because the mean of its divisors is an integer number (5814081).

Almost surely, 248192021 is an apocalyptic number.

It is an amenable number.

48192021 is a deficient number, since it is larger than the sum of its proper divisors (21576951).

48192021 is a wasteful number, since it uses less digits than its factorization.

48192021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12180 (or 12177 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 48192021 is about 6942.0473204956. The cubic root of 48192021 is about 363.9080922609.

The spelling of 48192021 in words is "forty-eight million, one hundred ninety-two thousand, twenty-one".

Divisors: 1 3 9 457 1371 4113 11717 35151 105453 5354669 16064007 48192021