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268480861 = 1128578543
BaseRepresentation
bin10000000000001…
…011000101011101
3200201012020111121
4100000023011131
51022212341421
642350250541
76440023015
oct2000130535
9621166447
10268480861
11128606710
1275ab6a51
134381351c
142792ac45
1518884d41
hex1000b15d

268480861 has 8 divisors (see below), whose sum is σ = 293025024. Its totient is φ = 243959520.

The previous prime is 268480841. The next prime is 268480879. The reversal of 268480861 is 168084862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268480861 - 25 = 268480829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268480841) 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, 27156 + ... + 35698.

It is an arithmetic number, because the mean of its divisors is an integer number (36628128).

Almost surely, 2268480861 is an apocalyptic number.

It is an amenable number.

268480861 is a deficient number, since it is larger than the sum of its proper divisors (24544163).

268480861 is a wasteful number, since it uses less digits than its factorization.

268480861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11411.

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 268480861 is about 16385.3855920451. The cubic root of 268480861 is about 645.1159465457.

The spelling of 268480861 in words is "two hundred sixty-eight million, four hundred eighty thousand, eight hundred sixty-one".

Divisors: 1 11 2857 8543 31427 93973 24407351 268480861