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47442382 = 2131824707
BaseRepresentation
bin1011010011111…
…0100111001110
310022021022201021
42310332213032
544121124012
64412504354
71114152661
oct264764716
9108238637
1047442382
1124864189
1213a7b0ba
139aa1220
14642d6d8
154272007
hex2d3e9ce

47442382 has 8 divisors (see below), whose sum is σ = 76637736. Its totient is φ = 21896472.

The previous prime is 47442379. The next prime is 47442383. The reversal of 47442382 is 28324474.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47442383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912328 + ... + 912379.

It is an arithmetic number, because the mean of its divisors is an integer number (9579717).

Almost surely, 247442382 is an apocalyptic number.

47442382 is a deficient number, since it is larger than the sum of its proper divisors (29195354).

47442382 is a wasteful number, since it uses less digits than its factorization.

47442382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824722.

The product of its digits is 43008, while the sum is 34.

The square root of 47442382 is about 6887.8430586070. The cubic root of 47442382 is about 362.0113291734.

Subtracting from 47442382 its product of digits (43008), we obtain a palindrome (47399374).

The spelling of 47442382 in words is "forty-seven million, four hundred forty-two thousand, three hundred eighty-two".

Divisors: 1 2 13 26 1824707 3649414 23721191 47442382