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47898893 = 743315803
BaseRepresentation
bin1011011010111…
…0000100001101
310100010111221002
42312232010031
544230231033
64430350045
71121063630
oct266560415
9110114832
1047898893
1125046169
121405b325
139c00c53
14650bc17
1543123e8
hex2dae10d

47898893 has 8 divisors (see below), whose sum is σ = 54871488. Its totient is φ = 40958784.

The previous prime is 47898883. The next prime is 47898901. The reversal of 47898893 is 39889874.

47898893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47898893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47898833) 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 7 ways as a sum of consecutive naturals, for example, 4871 + ... + 10932.

It is an arithmetic number, because the mean of its divisors is an integer number (6858936).

Almost surely, 247898893 is an apocalyptic number.

It is an amenable number.

47898893 is a deficient number, since it is larger than the sum of its proper divisors (6972595).

47898893 is a wasteful number, since it uses less digits than its factorization.

With its successor (47898894) it forms an eRAP, since the sums of their prime factors are consecutive (16243 and 16244).

47898893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16243.

The product of its digits is 3483648, while the sum is 56.

The square root of 47898893 is about 6920.9026145439. The cubic root of 47898893 is about 363.1687675093.

The spelling of 47898893 in words is "forty-seven million, eight hundred ninety-eight thousand, eight hundred ninety-three".

Divisors: 1 7 433 3031 15803 110621 6842699 47898893