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200231423 = 7179111847
BaseRepresentation
bin10111110111101…
…00100111111111
3111221202210212122
423323310213333
5402224401143
631511353155
74650640040
oct1373644777
9457683778
10200231423
11a3030917
12570827bb
1332638742
141c8428c7
15128a2c68
hexbef49ff

200231423 has 16 divisors (see below), whose sum is σ = 242694144. Its totient is φ = 161266560.

The previous prime is 200231407. The next prime is 200231429. The reversal of 200231423 is 324132002.

It is not a de Polignac number, because 200231423 - 24 = 200231407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200231429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107486 + ... + 109332.

It is an arithmetic number, because the mean of its divisors is an integer number (15168384).

Almost surely, 2200231423 is an apocalyptic number.

200231423 is a deficient number, since it is larger than the sum of its proper divisors (42462721).

200231423 is a wasteful number, since it uses less digits than its factorization.

200231423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 200231423 is about 14150.3152968406. The cubic root of 200231423 is about 585.0290223505.

Adding to 200231423 its reverse (324132002), we get a palindrome (524363425).

The spelling of 200231423 in words is "two hundred million, two hundred thirty-one thousand, four hundred twenty-three".

Divisors: 1 7 17 119 911 1847 6377 12929 15487 31399 108409 219793 1682617 11778319 28604489 200231423