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204612023 = 7112991631
BaseRepresentation
bin11000011001000…
…10000110110111
3112021000100221002
430030202012313
5404340041043
632145313515
75033113340
oct1414420667
9467010832
10204612023
11a5553050
125863589b
1333510605
141d2630c7
1512e6abb8
hexc3221b7

204612023 has 16 divisors (see below), whose sum is σ = 263900160. Its totient is φ = 153938400.

The previous prime is 204612013. The next prime is 204612047. The reversal of 204612023 is 320216402.

It is not a de Polignac number, because 204612023 - 214 = 204595639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204611986 and 204612004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204612013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43583 + ... + 48048.

It is an arithmetic number, because the mean of its divisors is an integer number (16493760).

Almost surely, 2204612023 is an apocalyptic number.

204612023 is a deficient number, since it is larger than the sum of its proper divisors (59288137).

204612023 is a wasteful number, since it uses less digits than its factorization.

204612023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91678.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 204612023 is about 14304.2659021706. The cubic root of 204612023 is about 589.2646426020.

Adding to 204612023 its reverse (320216402), we get a palindrome (524828425).

The spelling of 204612023 in words is "two hundred four million, six hundred twelve thousand, twenty-three".

Divisors: 1 7 11 29 77 203 319 2233 91631 641417 1007941 2657299 7055587 18601093 29230289 204612023