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268969284 = 22327471369
BaseRepresentation
bin10000000010000…
…010010101000100
3200202010001111100
4100002002111010
51022324004114
642404540100
76444126003
oct2002022504
9622101440
10268969284
1112890a671
12760b1630
134395492c
1427a16c3a
151892e909
hex10082544

268969284 has 18 divisors (see below), whose sum is σ = 679894670. Its totient is φ = 89656416.

The previous prime is 268969279. The next prime is 268969319. The reversal of 268969284 is 482969862.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 259532100 + 9437184 = 16110^2 + 3072^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 268969284.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3735649 + ... + 3735720.

Almost surely, 2268969284 is an apocalyptic number.

It is an amenable number.

268969284 is an abundant number, since it is smaller than the sum of its proper divisors (410925386).

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

268969284 is a wasteful number, since it uses less digits than its factorization.

268969284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7471379 (or 7471374 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 268969284 is about 16400.2830463380. The cubic root of 268969284 is about 645.5069099666.

The spelling of 268969284 in words is "two hundred sixty-eight million, nine hundred sixty-nine thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 7471369 14942738 22414107 29885476 44828214 67242321 89656428 134484642 268969284