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47987022 = 2317470461
BaseRepresentation
bin1011011100001…
…1100101001110
310100021222211010
42313003211032
544241041042
64432310050
71121611566
oct267034516
9110258733
1047987022
11250a63a6
12140a2326
139c320b5
146531da6
15432d59c
hex2dc394e

47987022 has 16 divisors (see below), whose sum is σ = 101619792. Its totient is φ = 15054720.

The previous prime is 47987021. The next prime is 47987041. The reversal of 47987022 is 22078974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47987021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235129 + ... + 235332.

It is an arithmetic number, because the mean of its divisors is an integer number (6351237).

Almost surely, 247987022 is an apocalyptic number.

47987022 is an abundant number, since it is smaller than the sum of its proper divisors (53632770).

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

47987022 is a wasteful number, since it uses less digits than its factorization.

47987022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470483.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 47987022 is about 6927.2665604840. The cubic root of 47987022 is about 363.3913620154.

The spelling of 47987022 in words is "forty-seven million, nine hundred eighty-seven thousand, twenty-two".

Divisors: 1 2 3 6 17 34 51 102 470461 940922 1411383 2822766 7997837 15995674 23993511 47987022