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200775920 = 2455414639
BaseRepresentation
bin10111111011110…
…01100011110000
3111222210110210012
423331321203300
5402344312140
631531154052
74655365352
oct1375714360
9458713705
10200775920
11a3372a14
12572a5928
1332799527
141c9450d2
151295e265
hexbf798f0

200775920 has 40 divisors (see below), whose sum is σ = 467767680. Its totient is φ = 80144640.

The previous prime is 200775919. The next prime is 200775923. The reversal of 200775920 is 29577002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200775923) 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 7 ways as a sum of consecutive naturals, for example, 40961 + ... + 45599.

It is an arithmetic number, because the mean of its divisors is an integer number (11694192).

Almost surely, 2200775920 is an apocalyptic number.

200775920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200775920 is an abundant number, since it is smaller than the sum of its proper divisors (266991760).

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

200775920 is a wasteful number, since it uses less digits than its factorization.

200775920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5193 (or 5187 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 200775920 is about 14169.5419827177. The cubic root of 200775920 is about 585.5588396872.

The spelling of 200775920 in words is "two hundred million, seven hundred seventy-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 541 1082 2164 2705 4328 4639 5410 8656 9278 10820 18556 21640 23195 37112 43280 46390 74224 92780 185560 371120 2509699 5019398 10038796 12548495 20077592 25096990 40155184 50193980 100387960 200775920