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47231066 = 2171389149
BaseRepresentation
bin1011010000101…
…1000001011010
310021212120211202
42310023001122
544042343231
64404154202
71112312621
oct264130132
9107776752
1047231066
112472a443
1213998962
139a28c9c
1463b66b8
15422e5cb
hex2d0b05a

47231066 has 8 divisors (see below), whose sum is σ = 75014100. Its totient is φ = 22226368.

The previous prime is 47231039. The next prime is 47231069. The reversal of 47231066 is 66013274.

It can be written as a sum of positive squares in 2 ways, for example, as 45171841 + 2059225 = 6721^2 + 1435^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47231069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694541 + ... + 694608.

Almost surely, 247231066 is an apocalyptic number.

47231066 is a deficient number, since it is larger than the sum of its proper divisors (27783034).

47231066 is a wasteful number, since it uses less digits than its factorization.

47231066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389168.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 47231066 is about 6872.4861585892. The cubic root of 47231066 is about 361.4730436153.

The spelling of 47231066 in words is "forty-seven million, two hundred thirty-one thousand, sixty-six".

Divisors: 1 2 17 34 1389149 2778298 23615533 47231066