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2686486080 = 26357093947
BaseRepresentation
bin1010000000100000…
…1000011001000000
320221020002122002110
42200020020121000
521000220023310
61122324415320
7123400516635
oct24010103100
96836078073
102686486080
1111594a6833
1262b847540
1333a764645
141b6b1618c
1510acb5d20
hexa0208640

2686486080 has 112 divisors (see below), whose sum is σ = 8543787840. Its totient is φ = 715204608.

The previous prime is 2686486051. The next prime is 2686486097. The reversal of 2686486080 is 806846862.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678667 + ... + 682613.

It is an arithmetic number, because the mean of its divisors is an integer number (76283820).

Almost surely, 22686486080 is an apocalyptic number.

2686486080 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 2686486080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4271893920).

2686486080 is an abundant number, since it is smaller than the sum of its proper divisors (5857301760).

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

2686486080 is a wasteful number, since it uses less digits than its factorization.

2686486080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676 (or 4666 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 2686486080 is about 51831.3233479524. The cubic root of 2686486080 is about 1390.1495758849.

The spelling of 2686486080 in words is "two billion, six hundred eighty-six million, four hundred eighty-six thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 709 960 1418 2127 2836 3545 3947 4254 5672 7090 7894 8508 10635 11344 11841 14180 15788 17016 19735 21270 22688 23682 28360 31576 34032 39470 42540 45376 47364 56720 59205 63152 68064 78940 85080 94728 113440 118410 126304 136128 157880 170160 189456 226880 236820 252608 315760 340320 378912 473640 631520 680640 757824 947280 1263040 1894560 2798423 3789120 5596846 8395269 11193692 13992115 16790538 22387384 27984230 33581076 41976345 44774768 55968460 67162152 83952690 89549536 111936920 134324304 167905380 179099072 223873840 268648608 335810760 447747680 537297216 671621520 895495360 1343243040 2686486080