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200581904 = 2431404399
BaseRepresentation
bin10111111010010…
…10001100010000
3111222102121122102
423331022030100
5402322110104
631523055532
74653626615
oct1375121420
9458377572
10200581904
11a3250176
12572115a8
133272c123
141c8d450c
1512921a1e
hexbf4a310

200581904 has 20 divisors (see below), whose sum is σ = 401164800. Its totient is φ = 97055520.

The previous prime is 200581889. The next prime is 200581939. The reversal of 200581904 is 409185002.

200581904 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 201704 + ... + 202695.

It is an arithmetic number, because the mean of its divisors is an integer number (20058240).

Almost surely, 2200581904 is an apocalyptic number.

It is an amenable number.

200581904 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

200581904 is a wasteful number, since it uses less digits than its factorization.

200581904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404438 (or 404432 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 200581904 is about 14162.6940939921. The cubic root of 200581904 is about 585.3701643425.

The spelling of 200581904 in words is "two hundred million, five hundred eighty-one thousand, nine hundred four".

Divisors: 1 2 4 8 16 31 62 124 248 496 404399 808798 1617596 3235192 6470384 12536369 25072738 50145476 100290952 200581904