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6801840 = 243354767
BaseRepresentation
bin11001111100100110110000
3110210120101000
4121330212300
53220124330
6401442000
7111546303
oct31744660
913716330
106801840
113926361
122340300
131541c76
14c90b3a
158e5560
hex67c9b0

6801840 has 160 divisors (see below), whose sum is σ = 24284160. Its totient is φ = 1748736.

The previous prime is 6801833. The next prime is 6801877. The reversal of 6801840 is 481086.

6801840 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101487 + ... + 101553.

It is an arithmetic number, because the mean of its divisors is an integer number (151776).

Almost surely, 26801840 is an apocalyptic number.

6801840 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 6801840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12142080).

6801840 is an abundant number, since it is smaller than the sum of its proper divisors (17482320).

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

6801840 is a wasteful number, since it uses less digits than its factorization.

6801840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 6801840 is about 2608.0337421130. The cubic root of 6801840 is about 189.4707338722.

The spelling of 6801840 in words is "six million, eight hundred one thousand, eight hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 47 48 54 60 67 72 80 90 94 108 120 134 135 141 144 180 188 201 216 235 240 268 270 282 335 360 376 402 423 432 470 536 540 564 603 670 705 720 752 804 846 940 1005 1072 1080 1128 1206 1269 1340 1410 1608 1692 1809 1880 2010 2115 2160 2256 2412 2538 2680 2820 3015 3149 3216 3384 3618 3760 4020 4230 4824 5076 5360 5640 6030 6298 6345 6768 7236 8040 8460 9045 9447 9648 10152 11280 12060 12596 12690 14472 15745 16080 16920 18090 18894 20304 24120 25192 25380 28341 28944 31490 33840 36180 37788 47235 48240 50384 50760 56682 62980 72360 75576 85023 94470 101520 113364 125960 141705 144720 151152 170046 188940 226728 251920 283410 340092 377880 425115 453456 566820 680184 755760 850230 1133640 1360368 1700460 2267280 3400920 6801840