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70047 = 3243181
BaseRepresentation
bin10001000110011111
310120002100
4101012133
54220142
61300143
7411135
oct210637
9116070
1070047
114869a
1234653
1325b63
141b755
1515b4c
hex1119f

70047 has 12 divisors (see below), whose sum is σ = 104104. Its totient is φ = 45360.

The previous prime is 70039. The next prime is 70051. The reversal of 70047 is 74007.

It is not a de Polignac number, because 70047 - 23 = 70039 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70047.

It is not an unprimeable number, because it can be changed into a prime (70067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297 + ... + 477.

270047 is an apocalyptic number.

70047 is a deficient number, since it is larger than the sum of its proper divisors (34057).

70047 is a wasteful number, since it uses less digits than its factorization.

70047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 70047 is about 264.6639378533. The cubic root of 70047 is about 41.2220747635. Note that the first 3 decimals are identical.

It can be divided in two parts, 700 and 47, that added together give a palindrome (747).

The spelling of 70047 in words is "seventy thousand, forty-seven", and thus it is an iban number.

Divisors: 1 3 9 43 129 181 387 543 1629 7783 23349 70047