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204310023 = 3312121821
BaseRepresentation
bin11000010110110…
…00011000000111
3112020110000122220
430023120120013
5404300410043
632135023423
75030415021
oct1413303007
9466400586
10204310023
11a5367165
125850ab73
1333436008
141d1c5011
1512e0b483
hexc2d8607

204310023 has 8 divisors (see below), whose sum is σ = 272513136. Its totient is φ = 136156800.

The previous prime is 204310019. The next prime is 204310027. The reversal of 204310023 is 320013402.

It is an interprime number because it is at equal distance from previous prime (204310019) and next prime (204310027).

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

It is not a de Polignac number, because 204310023 - 22 = 204310019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204309984 and 204310011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204310027) 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, 1548 + ... + 20273.

It is an arithmetic number, because the mean of its divisors is an integer number (34064142).

Almost surely, 2204310023 is an apocalyptic number.

204310023 is a deficient number, since it is larger than the sum of its proper divisors (68203113).

204310023 is a wasteful number, since it uses less digits than its factorization.

204310023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24945.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 204310023 is about 14293.7057126555. The cubic root of 204310023 is about 588.9745886998.

Adding to 204310023 its reverse (320013402), we get a palindrome (524323425).

The spelling of 204310023 in words is "two hundred four million, three hundred ten thousand, twenty-three".

Divisors: 1 3 3121 9363 21821 65463 68103341 204310023