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204897914362752 = 27313239317152217
BaseRepresentation
bin101110100101101010000011…
…011001101001101110000000
3222212111001022221121111021220
4232211222003121221232000
5203324021412034102002
62003440445152315040
761105246220424252
oct5645520331515600
9885431287544256
10204897914362752
115a317798a86666
121ab92708b42a80
138a43a37714120
14388517d35bcd2
1518a4ce93e97bc
hexba5a83669b80

204897914362752 has 128 divisors (see below), whose sum is σ = 586371213257760. Its totient is φ = 63019162632192.

The previous prime is 204897914362741. The next prime is 204897914362781. The reversal of 204897914362752 is 257263419798402.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3369748 + ... + 20521964.

It is a 1-persistent number, because it is pandigital, but 2⋅204897914362752 = 409795828725504 is not.

Almost surely, 2204897914362752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204897914362752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293185606628880).

204897914362752 is an abundant number, since it is smaller than the sum of its proper divisors (381473298895008).

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

204897914362752 is a wasteful number, since it uses less digits than its factorization.

204897914362752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17154640 (or 17154628 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 69.

The spelling of 204897914362752 in words is "two hundred four trillion, eight hundred ninety-seven billion, nine hundred fourteen million, three hundred sixty-two thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 128 156 192 208 312 384 416 624 832 1248 1664 2393 2496 4786 4992 7179 9572 14358 19144 28716 31109 38288 57432 62218 76576 93327 114864 124436 153152 186654 229728 248872 306304 373308 459456 497744 746616 918912 995488 1493232 1990976 2986464 3981952 5972928 11945856 17152217 34304434 51456651 68608868 102913302 137217736 205826604 222978821 274435472 411653208 445957642 548870944 668936463 823306416 891915284 1097741888 1337872926 1646612832 1783830568 2195483776 2675745852 3293225664 3567661136 5351491704 6586451328 7135322272 10702983408 14270644544 21405966816 28541289088 41045255281 42811933632 82090510562 85623867264 123135765843 164181021124 246271531686 328362042248 492543063372 533588318653 656724084496 985086126744 1067176637306 1313448168992 1600764955959 1970172253488 2134353274612 2626896337984 3201529911918 3940344506976 4268706549224 5253792675968 6403059823836 7880689013952 8537413098448 12806119647672 15761378027904 17074826196896 25612239295344 34149652393792 51224478590688 68299304787584 102448957181376 204897914362752