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268284263 = 13227229397
BaseRepresentation
bin11111111110110…
…11000101100111
3200200211020211012
433333123011213
51022140044023
642342132435
76435243602
oct1777330547
9620736735
10268284263
11128491a35
1275a2111b
1343774bb0
14278b9339
1518846978
hexffdb167

268284263 has 16 divisors (see below), whose sum is σ = 292195680. Its totient is φ = 244861056.

The previous prime is 268284257. The next prime is 268284287. The reversal of 268284263 is 362482862.

It is a cyclic number.

It is not a de Polignac number, because 268284263 - 28 = 268284007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268284263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268280263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 675581 + ... + 675977.

It is an arithmetic number, because the mean of its divisors is an integer number (18262230).

Almost surely, 2268284263 is an apocalyptic number.

268284263 is a deficient number, since it is larger than the sum of its proper divisors (23911417).

268284263 is a wasteful number, since it uses less digits than its factorization.

268284263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866.

The product of its digits is 221184, while the sum is 41.

The square root of 268284263 is about 16379.3853059265. The cubic root of 268284263 is about 644.9584437301.

The spelling of 268284263 in words is "two hundred sixty-eight million, two hundred eighty-four thousand, two hundred sixty-three".

Divisors: 1 13 227 229 397 2951 2977 5161 51983 90119 90913 675779 1171547 1181869 20637251 268284263