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205161468 = 22319899831
BaseRepresentation
bin11000011101010…
…00001111111100
3112022001021121220
430032220033330
5410010131333
632205153340
75040562251
oct1416501774
9468037556
10205161468
11a5898936
125885b850
1333673725
141d367428
15130288b3
hexc3a83fc

205161468 has 24 divisors (see below), whose sum is σ = 503905920. Its totient is φ = 64787760.

The previous prime is 205161461. The next prime is 205161469. The reversal of 205161468 is 864161502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205161461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449688 + ... + 450143.

It is an arithmetic number, because the mean of its divisors is an integer number (20996080).

Almost surely, 2205161468 is an apocalyptic number.

It is an amenable number.

205161468 is an abundant number, since it is smaller than the sum of its proper divisors (298744452).

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

205161468 is a wasteful number, since it uses less digits than its factorization.

205161468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899857 (or 899855 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 205161468 is about 14323.4586605331. The cubic root of 205161468 is about 589.7916222861.

The spelling of 205161468 in words is "two hundred five million, one hundred sixty-one thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 899831 1799662 2699493 3599324 5398986 10797972 17096789 34193578 51290367 68387156 102580734 205161468