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205220015045060 = 22543673561610813
BaseRepresentation
bin101110101010010110000010…
…000110001111100111000100
3222220121211201200212111200012
4232222112002012033213010
5203344311042322420220
62004244435020005352
761140441166152011
oct5652260206174704
9886554650774605
10205220015045060
115a431357466664
121b02501b990858
138a6821a1b6c32
1438969b776c708
1518ad39be73ac5
hexbaa58218f9c4

205220015045060 has 48 divisors (see below), whose sum is σ = 447566261330496. Its totient is φ = 78982281366912.

The previous prime is 205220015045041. The next prime is 205220015045063. The reversal of 205220015045060 is 60540510022502.

It is not an unprimeable number, because it can be changed into a prime (205220015045063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780747787 + ... + 1780863026.

It is an arithmetic number, because the mean of its divisors is an integer number (9324297111052).

Almost surely, 2205220015045060 is an apocalyptic number.

205220015045060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205220015045060 is an abundant number, since it is smaller than the sum of its proper divisors (242346246285436).

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

205220015045060 is a wasteful number, since it uses less digits than its factorization.

205220015045060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561610932 (or 3561610930 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 205220015045060 its reverse (60540510022502), we get a palindrome (265760525067562).

The spelling of 205220015045060 in words is "two hundred five trillion, two hundred twenty billion, fifteen million, forty-five thousand, sixty".

Divisors: 1 2 4 5 10 20 43 67 86 134 172 215 268 335 430 670 860 1340 2881 5762 11524 14405 28810 57620 3561610813 7123221626 14246443252 17808054065 35616108130 71232216260 153149264959 238627924471 306298529918 477255848942 612597059836 765746324795 954511697884 1193139622355 1531492649590 2386279244710 3062985299180 4772558489420 10261000752253 20522001504506 41044003009012 51305003761265 102610007522530 205220015045060