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268287974080 = 2657119771417
BaseRepresentation
bin1111100111011100110…
…1011001101011000000
3221122111110011012022121
43321313031121223000
513343423210132310
6323125542214024
725245266103310
oct3716715315300
9848443135277
10268287974080
11a3864626915
1243bb5124314
131c3b7b69529
14cdb15a1440
156ea36080da
hex3e77359ac0

268287974080 has 56 divisors (see below), whose sum is σ = 730126564128. Its totient is φ = 91984447488.

The previous prime is 268287974077. The next prime is 268287974083. The reversal of 268287974080 is 80479782862.

It is an interprime number because it is at equal distance from previous prime (268287974077) and next prime (268287974083).

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (268287974083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59883469 + ... + 59887948.

Almost surely, 2268287974080 is an apocalyptic number.

268287974080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268287974080 is an abundant number, since it is smaller than the sum of its proper divisors (461838590048).

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

268287974080 is a wasteful number, since it uses less digits than its factorization.

268287974080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119771441 (or 119771431 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 268287974080 in words is "two hundred sixty-eight billion, two hundred eighty-seven million, nine hundred seventy-four thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 320 448 560 1120 2240 119771417 239542834 479085668 598857085 838399919 958171336 1197714170 1676799838 1916342672 2395428340 3353599676 3832685344 4191999595 4790856680 6707199352 7665370688 8383999190 9581713360 13414398704 16767998380 19163426720 26828797408 33535996760 38326853440 53657594816 67071993520 134143987040 268287974080