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268280463 = 31138920899
BaseRepresentation
bin11111111110110…
…10001010001111
3200200211001121110
433333122022033
51022134433323
642342103103
76435226533
oct1777321217
9620731543
10268280463
1112848a0a0
1275a1aa93
1343773249
14278b7bc3
1518845793
hexffda28f

268280463 has 16 divisors (see below), whose sum is σ = 391248000. Its totient is φ = 162168480.

The previous prime is 268280459. The next prime is 268280471. The reversal of 268280463 is 364082862.

It is not a de Polignac number, because 268280463 - 22 = 268280459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268280413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2388 + ... + 23286.

It is an arithmetic number, because the mean of its divisors is an integer number (24453000).

Almost surely, 2268280463 is an apocalyptic number.

268280463 is a deficient number, since it is larger than the sum of its proper divisors (122967537).

268280463 is a wasteful number, since it uses less digits than its factorization.

268280463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21302.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 268280463 is about 16379.2693060466. The cubic root of 268280463 is about 644.9553986346.

The spelling of 268280463 in words is "two hundred sixty-eight million, two hundred eighty thousand, four hundred sixty-three".

Divisors: 1 3 11 33 389 1167 4279 12837 20899 62697 229889 689667 8129711 24389133 89426821 268280463