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26080740 = 22325722957
BaseRepresentation
bin110001101111…
…1010111100100
31211002001001100
41203133113210
523134040430
62331000100
7434453100
oct143372744
954061040
1026080740
11137a3934
128899030
1355320ba
14366c900
152452960
hex18df5e4

26080740 has 108 divisors (see below), whose sum is σ = 92058876. Its totient is φ = 5959296.

The previous prime is 26080729. The next prime is 26080753. The reversal of 26080740 is 4708062.

It can be written as a sum of positive squares in 2 ways, for example, as 7001316 + 19079424 = 2646^2 + 4368^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7342 + ... + 10298.

It is an arithmetic number, because the mean of its divisors is an integer number (852397).

Almost surely, 226080740 is an apocalyptic number.

26080740 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 26080740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46029438).

26080740 is an abundant number, since it is smaller than the sum of its proper divisors (65978136).

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

26080740 is a wasteful number, since it uses less digits than its factorization.

26080740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986 (or 2974 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 26080740 is about 5106.9305849992. The cubic root of 26080740 is about 296.5559462824. Note that the first 3 decimals are identical.

The spelling of 26080740 in words is "twenty-six million, eighty thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 49 60 63 70 84 90 98 105 126 140 147 180 196 210 245 252 294 315 420 441 490 588 630 735 882 980 1260 1470 1764 2205 2940 2957 4410 5914 8820 8871 11828 14785 17742 20699 26613 29570 35484 41398 44355 53226 59140 62097 82796 88710 103495 106452 124194 133065 144893 177420 186291 206990 248388 266130 289786 310485 372582 413980 434679 532260 579572 620970 724465 745164 869358 931455 1241940 1304037 1448930 1738716 1862910 2173395 2608074 2897860 3725820 4346790 5216148 6520185 8693580 13040370 26080740