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200315664 = 24321391081
BaseRepresentation
bin10111111000010…
…01001100010000
3111221221002102200
423330021030100
5402240100124
631513243200
74651440453
oct1374111420
9457832380
10200315664
11a308913a
1257103500
1332667ba3
141c86549a
15128bcbc9
hexbf09310

200315664 has 30 divisors (see below), whose sum is σ = 560606046. Its totient is φ = 66771840.

The previous prime is 200315653. The next prime is 200315683. The reversal of 200315664 is 466513002.

It can be written as a sum of positive squares in only one way, i.e., 195440400 + 4875264 = 13980^2 + 2208^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 695397 + ... + 695684.

Almost surely, 2200315664 is an apocalyptic number.

200315664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

200315664 is an abundant number, since it is smaller than the sum of its proper divisors (360290382).

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

200315664 is a wasteful number, since it uses less digits than its factorization.

200315664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391095 (or 1391086 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 200315664 is about 14153.2916312779. The cubic root of 200315664 is about 585.1110549627. Note that the first 3 decimals are identical.

Adding to 200315664 its reverse (466513002), we get a palindrome (666828666).

The spelling of 200315664 in words is "two hundred million, three hundred fifteen thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 1391081 2782162 4173243 5564324 8346486 11128648 12519729 16692972 22257296 25039458 33385944 50078916 66771888 100157832 200315664