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268986458 = 21319737459
BaseRepresentation
bin10000000010000…
…110100001011010
3200202010221001102
4100002012201122
51022330031313
642405151402
76444230036
oct2002064132
9622127042
10268986458
11128921564
12760bb562
134395c6b0
1427a1d1c6
1518934a58
hex1008685a

268986458 has 32 divisors (see below), whose sum is σ = 463713600. Its totient is φ = 115986816.

The previous prime is 268986451. The next prime is 268986463. The reversal of 268986458 is 854689862.

It is not an unprimeable number, because it can be changed into a prime (268986451) 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, 32333 + ... + 39791.

It is an arithmetic number, because the mean of its divisors is an integer number (14491050).

Almost surely, 2268986458 is an apocalyptic number.

268986458 is a deficient number, since it is larger than the sum of its proper divisors (194727142).

268986458 is a wasteful number, since it uses less digits than its factorization.

268986458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566.

The product of its digits is 6635520, while the sum is 56.

The square root of 268986458 is about 16400.8066265047. The cubic root of 268986458 is about 645.5206484619.

The spelling of 268986458 in words is "two hundred sixty-eight million, nine hundred eighty-six thousand, four hundred fifty-eight".

Divisors: 1 2 13 19 26 38 73 146 247 494 949 1387 1898 2774 7459 14918 18031 36062 96967 141721 193934 283442 544507 1089014 1842373 3684746 7078591 10345633 14157182 20691266 134493229 268986458