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268487284 = 22137370729
BaseRepresentation
bin10000000000001…
…100101001110100
3200201012120022111
4100000030221310
51022213043114
642350340404
76440050522
oct2000145164
9621176274
10268487284
1112861051a
1275aba704
1343816420
142792d312
1518886bc4
hex1000ca74

268487284 has 24 divisors (see below), whose sum is σ = 512933960. Its totient is φ = 122217984.

The previous prime is 268487269. The next prime is 268487333. The reversal of 268487284 is 482784862.

268487284 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23251684 + 245235600 = 4822^2 + 15660^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31569 + ... + 39160.

Almost surely, 2268487284 is an apocalyptic number.

It is an amenable number.

268487284 is a deficient number, since it is larger than the sum of its proper divisors (244446676).

268487284 is a wasteful number, since it uses less digits than its factorization.

268487284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70819 (or 70817 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 49.

The square root of 268487284 is about 16385.5815887017. The cubic root of 268487284 is about 645.1210909803.

The spelling of 268487284 in words is "two hundred sixty-eight million, four hundred eighty-seven thousand, two hundred eighty-four".

Divisors: 1 2 4 13 26 52 73 146 292 949 1898 3796 70729 141458 282916 919477 1838954 3677908 5163217 10326434 20652868 67121821 134243642 268487284