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68020507783960 = 23559127226946843
BaseRepresentation
bin11110111011101010000100…
…01101000011001100011000
322220211200211010210021201121
433131311002031003030120
532403421444443041320
6400400105003255024
720220214410305404
oct1735650215031430
9286750733707647
1068020507783960
111a745376397a26
1277669b651a474
132bc53ca0c9354
1412b22d28bc104
157ce5821388aa
hex3ddd42343318

68020507783960 has 64 divisors (see below), whose sum is σ = 156865658572800. Its totient is φ = 26536440341376.

The previous prime is 68020507783957. The next prime is 68020507784003. The reversal of 68020507783960 is 6938770502086.

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, 113173702 + ... + 113773141.

It is an arithmetic number, because the mean of its divisors is an integer number (2451025915200).

Almost surely, 268020507783960 is an apocalyptic number.

It is an amenable number.

68020507783960 is an abundant number, since it is smaller than the sum of its proper divisors (88845150788840).

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

68020507783960 is a wasteful number, since it uses less digits than its factorization.

68020507783960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226947040 (or 226947036 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 68020507783960 in words is "sixty-eight trillion, twenty billion, five hundred seven million, seven hundred eighty-three thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 59 118 127 236 254 295 472 508 590 635 1016 1180 1270 2360 2540 5080 7493 14986 29972 37465 59944 74930 149860 299720 226946843 453893686 907787372 1134734215 1815574744 2269468430 4538936860 9077873720 13389863737 26779727474 28822249061 53559454948 57644498122 66949318685 107118909896 115288996244 133898637370 144111245305 230577992488 267797274740 288222490610 535594549480 576444981220 1152889962440 1700512694599 3401025389198 6802050778396 8502563472995 13604101556792 17005126945990 34010253891980 68020507783960