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200664460 = 22571251563
BaseRepresentation
bin10111111010111…
…10010110001100
3111222120210220001
423331132112030
5402332230320
631524534044
74654422403
oct1375362614
9458523801
10200664460
11a32a71a7
1257251324
133275a889
141c91663a
151293b20a
hexbf5e58c

200664460 has 48 divisors (see below), whose sum is σ = 429795072. Its totient is φ = 78680000.

The previous prime is 200664449. The next prime is 200664463. The reversal of 200664460 is 64466002.

It is not an unprimeable number, because it can be changed into a prime (200664463) 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 15 ways as a sum of consecutive naturals, for example, 356139 + ... + 356701.

It is an arithmetic number, because the mean of its divisors is an integer number (8954064).

Almost surely, 2200664460 is an apocalyptic number.

200664460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200664460 is an abundant number, since it is smaller than the sum of its proper divisors (229130612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200664460 is a wasteful number, since it uses less digits than its factorization.

200664460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 200664460 is about 14165.6083526264. The cubic root of 200664460 is about 585.4504626974.

It can be divided in two parts, 2006 and 64460, that added together give a palindrome (66466).

The spelling of 200664460 in words is "two hundred million, six hundred sixty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 71 142 251 284 355 502 563 710 1004 1126 1255 1420 2252 2510 2815 5020 5630 11260 17821 35642 39973 71284 79946 89105 141313 159892 178210 199865 282626 356420 399730 565252 706565 799460 1413130 2826260 10033223 20066446 40132892 50166115 100332230 200664460