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6854650680 = 2335597691259
BaseRepresentation
bin1100110001001000…
…11010101100111000
3122200201020100000010
412120210122230320
5103014242310210
63052102541520
7331602366213
oct63044325470
918621210003
106854650680
1129a82a9569
1213b37378a0
13853174b27
1449052277a
152a1ba7920
hex19891ab38

6854650680 has 128 divisors (see below), whose sum is σ = 20956320000. Its totient is φ = 1793163264.

The previous prime is 6854650679. The next prime is 6854650681. The reversal of 6854650680 is 860564586.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6854650679) and next prime (6854650681).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6854650681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5443891 + ... + 5445149.

It is an arithmetic number, because the mean of its divisors is an integer number (163721250).

Almost surely, 26854650680 is an apocalyptic number.

6854650680 is a gapful number since it is divisible by the number (60) 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 6854650680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10478160000).

6854650680 is an abundant number, since it is smaller than the sum of its proper divisors (14101669320).

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

6854650680 is a wasteful number, since it uses less digits than its factorization.

6854650680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101 (or 2097 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The square root of 6854650680 is about 82792.8178044448. The cubic root of 6854650680 is about 1899.5983158235.

The spelling of 6854650680 in words is "six billion, eight hundred fifty-four million, six hundred fifty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 59 60 118 120 177 236 295 354 472 590 708 769 885 1180 1259 1416 1538 1770 2307 2360 2518 3076 3540 3777 3845 4614 5036 6152 6295 7080 7554 7690 9228 10072 11535 12590 15108 15380 18456 18885 23070 25180 30216 30760 37770 45371 46140 50360 74281 75540 90742 92280 136113 148562 151080 181484 222843 226855 272226 297124 362968 371405 445686 453710 544452 594248 680565 742810 891372 907420 968171 1088904 1114215 1361130 1485620 1782744 1814840 1936342 2228430 2722260 2904513 2971240 3872684 4456860 4840855 5444520 5809026 7745368 8913720 9681710 11618052 14522565 19363420 23236104 29045130 38726840 57122089 58090260 114244178 116180520 171366267 228488356 285610445 342732534 456976712 571220890 685465068 856831335 1142441780 1370930136 1713662670 2284883560 3427325340 6854650680