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1208813824 = 28412532
BaseRepresentation
bin100100000001101…
…0000100100000000
310010020121002211101
41020003100210000
54433424020244
6315541024144
741645514361
oct11003204400
93106532741
101208813824
11570386799
122989b5054
1316358c16a
14b6785b68
15711cc0d4
hex480d0900

1208813824 has 81 divisors (see below), whose sum is σ = 2520736939. Its totient is φ = 578539520.

The previous prime is 1208813803. The next prime is 1208813831. The reversal of 1208813824 is 4283188021.

The square root of 1208813824 is 34768.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 130873600 + 1077940224 = 11440^2 + 32832^2 .

It is a super-2 number, since 2×12088138242 = 2922461722187005952, which contains 22 as substring.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 22807782 + ... + 22807834.

Almost surely, 21208813824 is an apocalyptic number.

1208813824 is the 34768-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1208813824

1208813824 is an abundant number, since it is smaller than the sum of its proper divisors (1311923115).

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

1208813824 is an frugal number, since it uses more digits than its factorization.

1208813824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The cubic root of 1208813824 is about 1065.2539158138.

The spelling of 1208813824 in words is "one billion, two hundred eight million, eight hundred thirteen thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 32 41 53 64 82 106 128 164 212 256 328 424 656 848 1312 1681 1696 2173 2624 2809 3362 3392 4346 5248 5618 6724 6784 8692 10496 11236 13448 13568 17384 22472 26896 34768 44944 53792 69536 89093 89888 107584 115169 139072 178186 179776 215168 230338 278144 356372 359552 430336 460676 556288 712744 719104 921352 1425488 1842704 2850976 3685408 4721929 5701952 7370816 9443858 11403904 14741632 18887716 22807808 29483264 37775432 75550864 151101728 302203456 604406912 1208813824