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205230550 = 25273831531
BaseRepresentation
bin11000011101110…
…01000111010110
3112022011210101111
430032321013112
5410014334200
632210445234
75041300540
oct1416710726
9468153344
10205230550
11a5935828
125889381a
1333698cc5
141d384690
151303e0ba
hexc3b91d6

205230550 has 48 divisors (see below), whose sum is σ = 437686272. Its totient is φ = 70135200.

The previous prime is 205230517. The next prime is 205230551. The reversal of 205230550 is 55032502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205230551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133285 + ... + 134815.

It is an arithmetic number, because the mean of its divisors is an integer number (9118464).

Almost surely, 2205230550 is an apocalyptic number.

205230550 is an abundant number, since it is smaller than the sum of its proper divisors (232455722).

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

205230550 is a wasteful number, since it uses less digits than its factorization.

205230550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 205230550 is about 14325.8699561318. The cubic root of 205230550 is about 589.8578130983.

The spelling of 205230550 in words is "two hundred five million, two hundred thirty thousand, five hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 383 766 1531 1915 2681 3062 3830 5362 7655 9575 10717 13405 15310 19150 21434 26810 38275 53585 67025 76550 107170 134050 267925 535850 586373 1172746 2931865 4104611 5863730 8209222 14659325 20523055 29318650 41046110 102615275 205230550