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47888885 = 5114320249
BaseRepresentation
bin1011011010101…
…1100111110101
310100010000012102
42312223213311
544224421020
64430231445
71121022512
oct266534765
9110100172
1047888885
11250396a0
1214055585
139bc9525
146508309
15430e475
hex2dab9f5

47888885 has 16 divisors (see below), whose sum is σ = 64152000. Its totient is φ = 34016640.

The previous prime is 47888849. The next prime is 47888887. The reversal of 47888885 is 58888874.

It is not a de Polignac number, because 47888885 - 26 = 47888821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47888885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47888887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7760 + ... + 12489.

It is an arithmetic number, because the mean of its divisors is an integer number (4009500).

Almost surely, 247888885 is an apocalyptic number.

It is an amenable number.

47888885 is a deficient number, since it is larger than the sum of its proper divisors (16263115).

47888885 is a wasteful number, since it uses less digits than its factorization.

47888885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20308.

The product of its digits is 4587520, while the sum is 56.

The square root of 47888885 is about 6920.1795496938. The cubic root of 47888885 is about 363.1434722400.

The spelling of 47888885 in words is "forty-seven million, eight hundred eighty-eight thousand, eight hundred eighty-five".

Divisors: 1 5 11 43 55 215 473 2365 20249 101245 222739 870707 1113695 4353535 9577777 47888885