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23000471 = 1315111717
BaseRepresentation
bin101011110111…
…1010110010111
31121021112201022
41113233112113
521342003341
62140551355
7366333524
oct127572627
947245638
1023000471
1111a8a65a
12785255b
1349c4060
1430aa14b
152044e4b
hex15ef597

23000471 has 8 divisors (see below), whose sum is σ = 24935904. Its totient is φ = 21088800.

The previous prime is 23000459. The next prime is 23000479. The reversal of 23000471 is 17400032.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23000471 - 210 = 22999447 is a prime.

It is a super-3 number, since 3×230004713 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3896 + ... + 7821.

It is an arithmetic number, because the mean of its divisors is an integer number (3116988).

Almost surely, 223000471 is an apocalyptic number.

23000471 is a deficient number, since it is larger than the sum of its proper divisors (1935433).

23000471 is a wasteful number, since it uses less digits than its factorization.

23000471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11881.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 23000471 is about 4795.8806282058. The cubic root of 23000471 is about 284.3886392202.

The spelling of 23000471 in words is "twenty-three million, four hundred seventy-one", and thus it is an aban number.

Divisors: 1 13 151 1963 11717 152321 1769267 23000471