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206069266880 = 2654136742797
BaseRepresentation
bin1011111111101010101…
…1110111100111000000
3201200220022200101110122
42333322223313213000
511334012213020010
6234400015315412
720613405603431
oct2777253674700
9650808611418
10206069266880
117a436802244
1233b3021bb68
131658085ab59
149d8c1a1488
1555611e0855
hex2ffaaf79c0

206069266880 has 112 divisors (see below), whose sum is σ = 504052246656. Its totient is φ = 80196280320.

The previous prime is 206069266873. The next prime is 206069266913. The reversal of 206069266880 is 88662960602.

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, 4793642 + ... + 4836438.

It is an arithmetic number, because the mean of its divisors is an integer number (4500466488).

Almost surely, 2206069266880 is an apocalyptic number.

206069266880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206069266880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252026123328).

206069266880 is an abundant number, since it is smaller than the sum of its proper divisors (297982979776).

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

206069266880 is a wasteful number, since it uses less digits than its factorization.

206069266880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43222 (or 43212 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 206069266880 in words is "two hundred six billion, sixty-nine million, two hundred sixty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 41 64 80 82 160 164 205 320 328 367 410 656 734 820 1312 1468 1640 1835 2624 2936 3280 3670 5872 6560 7340 11744 13120 14680 15047 23488 29360 30094 42797 58720 60188 75235 85594 117440 120376 150470 171188 213985 240752 300940 342376 427970 481504 601880 684752 855940 963008 1203760 1369504 1711880 1754677 2407520 2739008 3423760 3509354 4815040 6847520 7018708 8773385 13695040 14037416 15706499 17546770 28074832 31412998 35093540 56149664 62825996 70187080 78532495 112299328 125651992 140374160 157064990 251303984 280748320 314129980 502607968 561496640 628259960 643966459 1005215936 1256519920 1287932918 2513039840 2575865836 3219832295 5026079680 5151731672 6439664590 10303463344 12879329180 20606926688 25758658360 41213853376 51517316720 103034633440 206069266880