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47839288 = 2372122039
BaseRepresentation
bin1011011001111…
…1100000111000
310100000111011111
42312133200320
544221324123
64425210104
71120425100
oct266374070
9110014144
1047839288
1125005402
1214030934
139baca93
1464d4200
1542ee90d
hex2d9f838

47839288 has 24 divisors (see below), whose sum is σ = 104344200. Its totient is φ = 20502384.

The previous prime is 47839271. The next prime is 47839289. The reversal of 47839288 is 88293874.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47839289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60628 + ... + 61411.

It is an arithmetic number, because the mean of its divisors is an integer number (4347675).

Almost surely, 247839288 is an apocalyptic number.

It is an amenable number.

47839288 is an abundant number, since it is smaller than the sum of its proper divisors (56504912).

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

47839288 is a wasteful number, since it uses less digits than its factorization.

47839288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122059 (or 122048 counting only the distinct ones).

The product of its digits is 774144, while the sum is 49.

The square root of 47839288 is about 6916.5951160958. The cubic root of 47839288 is about 363.0180635422.

The spelling of 47839288 in words is "forty-seven million, eight hundred thirty-nine thousand, two hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 122039 244078 488156 854273 976312 1708546 3417092 5979911 6834184 11959822 23919644 47839288