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47987005 = 5111723019
BaseRepresentation
bin1011011100001…
…1100100111101
310100021222210111
42313003210331
544241041010
64432310021
71121611543
oct267034475
9110258714
1047987005
11250a6390
12140a2311
139c320a1
146531d93
15432d58a
hex2dc393d

47987005 has 24 divisors (see below), whose sum is σ = 66754080. Its totient is φ = 32835840.

The previous prime is 47986963. The next prime is 47987021. The reversal of 47987005 is 50078974.

It is not a de Polignac number, because 47987005 - 27 = 47986877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14386 + ... + 17404.

It is an arithmetic number, because the mean of its divisors is an integer number (2781420).

Almost surely, 247987005 is an apocalyptic number.

It is an amenable number.

47987005 is a deficient number, since it is larger than the sum of its proper divisors (18767075).

47987005 is a wasteful number, since it uses less digits than its factorization.

47987005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069 (or 3052 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 47987005 is about 6927.2653334487. The cubic root of 47987005 is about 363.3913191034.

The spelling of 47987005 in words is "forty-seven million, nine hundred eighty-seven thousand, five".

Divisors: 1 5 11 17 55 85 187 289 935 1445 3019 3179 15095 15895 33209 51323 166045 256615 564553 872491 2822765 4362455 9597401 47987005