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268696960 = 2757371621
BaseRepresentation
bin10000000000111…
…111110110000000
3200201121012221021
4100000333312000
51022241300320
642355035224
76441613030
oct2000776600
9621535837
10268696960
11128744004
1275b9bb14
134388a9ac
14279858c0
15188c8daa
hex1003fd80

268696960 has 128 divisors (see below), whose sum is σ = 754424640. Its totient is φ = 89579520.

The previous prime is 268696943. The next prime is 268696973. The reversal of 268696960 is 69696862.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 268696898 and 268696907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164950 + ... + 166570.

Almost surely, 2268696960 is an apocalyptic number.

268696960 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 268696960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377212320).

268696960 is an abundant number, since it is smaller than the sum of its proper divisors (485727680).

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

268696960 is a wasteful number, since it uses less digits than its factorization.

268696960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 268696960 is about 16391.9785260962. The cubic root of 268696960 is about 645.2889837397.

The spelling of 268696960 in words is "two hundred sixty-eight million, six hundred ninety-six thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 37 40 56 64 70 74 80 112 128 140 148 160 185 224 259 280 296 320 370 448 518 560 592 640 740 896 1036 1120 1184 1295 1480 1621 2072 2240 2368 2590 2960 3242 4144 4480 4736 5180 5920 6484 8105 8288 10360 11347 11840 12968 16210 16576 20720 22694 23680 25936 32420 33152 41440 45388 51872 56735 59977 64840 82880 90776 103744 113470 119954 129680 165760 181552 207488 226940 239908 259360 299885 363104 419839 453880 479816 518720 599770 726208 839678 907760 959632 1037440 1199540 1452416 1679356 1815520 1919264 2099195 2399080 3358712 3631040 3838528 4198390 4798160 6717424 7262080 7677056 8396780 9596320 13434848 16793560 19192640 26869696 33587120 38385280 53739392 67174240 134348480 268696960