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205793297124 = 223157109232111
BaseRepresentation
bin1011111110101000111…
…1001000001011100100
3201200012002101200010120
42333222033020023210
511332431041001444
6234312400321540
720603515110042
oct2775217101344
9650162350116
10205793297124
117a304a51068
1233a739132b0
1316538624a3c
149d63685392
155546d7bb19
hex2fea3c82e4

205793297124 has 24 divisors (see below), whose sum is σ = 483242863488. Its totient is φ = 68160836640.

The previous prime is 205793297119. The next prime is 205793297131. The reversal of 205793297124 is 421792397502.

It is a super-2 number, since 2×2057932971242 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54614172 + ... + 54617939.

It is an arithmetic number, because the mean of its divisors is an integer number (20135119312).

Almost surely, 2205793297124 is an apocalyptic number.

It is an amenable number.

205793297124 is an abundant number, since it is smaller than the sum of its proper divisors (277449566364).

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

205793297124 is a wasteful number, since it uses less digits than its factorization.

205793297124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109232275 (or 109232273 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 205793297124 in words is "two hundred five billion, seven hundred ninety-three million, two hundred ninety-seven thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 157 314 471 628 942 1884 109232111 218464222 327696333 436928444 655392666 1310785332 17149441427 34298882854 51448324281 68597765708 102896648562 205793297124