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73047 = 3131873
BaseRepresentation
bin10001110101010111
310201012110
4101311113
54314142
61322103
7422652
oct216527
9121173
1073047
114a977
1236333
1327330
141c899
151699c
hex11d57

73047 has 8 divisors (see below), whose sum is σ = 104944. Its totient is φ = 44928.

The previous prime is 73043. The next prime is 73061. The reversal of 73047 is 74037.

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

It is not a de Polignac number, because 73047 - 22 = 73043 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898 + ... + 975.

It is an arithmetic number, because the mean of its divisors is an integer number (13118).

273047 is an apocalyptic number.

73047 is a deficient number, since it is larger than the sum of its proper divisors (31897).

73047 is a wasteful number, since it uses less digits than its factorization.

73047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889.

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 73047 is about 270.2720851290. The cubic root of 73047 is about 41.8023593977.

Subtracting 73047 from its reverse (74037), we obtain a triangular number (990 = T44).

It can be divided in two parts, 730 and 47, that added together give a palindrome (777).

The spelling of 73047 in words is "seventy-three thousand, forty-seven", and thus it is an iban number.

Divisors: 1 3 13 39 1873 5619 24349 73047