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47830540 = 2252391527
BaseRepresentation
bin1011011001110…
…1011000001100
310100000001011111
42312131120030
544221034130
64425101404
71120360432
oct266353014
9110001144
1047830540
1124aa987a
1214027864
139ba8ac4
1464d0d52
1542ec02a
hex2d9d60c

47830540 has 12 divisors (see below), whose sum is σ = 100444176. Its totient is φ = 19132208.

The previous prime is 47830511. The next prime is 47830553. The reversal of 47830540 is 4503874.

47830540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1195744 + ... + 1195783.

It is an arithmetic number, because the mean of its divisors is an integer number (8370348).

Almost surely, 247830540 is an apocalyptic number.

It is an amenable number.

47830540 is an abundant number, since it is smaller than the sum of its proper divisors (52613636).

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

47830540 is a wasteful number, since it uses less digits than its factorization.

47830540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391536 (or 2391534 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 47830540 is about 6915.9626950989. The cubic root of 47830540 is about 362.9959347596.

The spelling of 47830540 in words is "forty-seven million, eight hundred thirty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 2391527 4783054 9566108 11957635 23915270 47830540