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47163137 = 724720479
BaseRepresentation
bin1011001111101…
…0011100000001
310021202010122212
42303322130001
544033210022
64402511505
71111610600
oct263723401
9107663585
1047163137
11246933aa
1213965595
139a040a8
146399a37
1542193e2
hex2cfa701

47163137 has 12 divisors (see below), whose sum is σ = 56033280. Its totient is φ = 39563496.

The previous prime is 47163113. The next prime is 47163143. The reversal of 47163137 is 73136174.

47163137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47163137 - 28 = 47162881 is a prime.

It is a super-2 number, since 2×471631372 = 4448722983361538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47163107) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7937 + ... + 12542.

It is an arithmetic number, because the mean of its divisors is an integer number (4669440).

Almost surely, 247163137 is an apocalyptic number.

47163137 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

47163137 is a deficient number, since it is larger than the sum of its proper divisors (8870143).

47163137 is a wasteful number, since it uses less digits than its factorization.

47163137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20540 (or 20533 counting only the distinct ones).

The product of its digits is 10584, while the sum is 32.

The square root of 47163137 is about 6867.5422823598. The cubic root of 47163137 is about 361.2996670256.

The spelling of 47163137 in words is "forty-seven million, one hundred sixty-three thousand, one hundred thirty-seven".

Divisors: 1 7 47 49 329 2303 20479 143353 962513 1003471 6737591 47163137