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200231404 = 221312111811
BaseRepresentation
bin10111110111101…
…00100111101100
3111221202210211221
423323310213230
5402224401104
631511353124
74650640012
oct1373644754
9457683757
10200231404
11a30308aa
12570827a4
1332638729
141c8428b2
15128a2c54
hexbef49ec

200231404 has 24 divisors (see below), whose sum is σ = 354949056. Its totient is φ = 98826000.

The previous prime is 200231401. The next prime is 200231407. The reversal of 200231404 is 404132002.

It is an interprime number because it is at equal distance from previous prime (200231401) and next prime (200231407).

It is a super-2 number, since 2×2002314042 = 80185230295622432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200231401) 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, 109659 + ... + 111469.

It is an arithmetic number, because the mean of its divisors is an integer number (14789544).

Almost surely, 2200231404 is an apocalyptic number.

It is an amenable number.

200231404 is a deficient number, since it is larger than the sum of its proper divisors (154717652).

200231404 is a wasteful number, since it uses less digits than its factorization.

200231404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157 (or 2155 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 200231404 is about 14150.3146254774. The cubic root of 200231404 is about 585.0290038460.

Adding to 200231404 its reverse (404132002), we get a palindrome (604363406).

The spelling of 200231404 in words is "two hundred million, two hundred thirty-one thousand, four hundred four".

Divisors: 1 2 4 131 211 262 422 524 844 1811 3622 7244 27641 55282 110564 237241 382121 474482 764242 948964 1528484 50057851 100115702 200231404