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80983499776 = 21088932
BaseRepresentation
bin100101101101011111…
…1100010010000000000
321202000212202001001121
41023122333202100000
52311323233443101
6101111525242024
75564563250614
oct1133277422000
9252025661047
1080983499776
1131388090013
1213841263314
137837b1584a
143cc362d344
15218e9e10a1
hex12dafe2400

80983499776 has 33 divisors (see below), whose sum is σ = 161906120121. Its totient is φ = 40487196672.

The previous prime is 80983499749. The next prime is 80983499809. The reversal of 80983499776 is 67799438908.

The square root of 80983499776 is 284576.

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

It can be written as a sum of positive squares in only one way, i.e., 10983040000 + 70000459776 = 104800^2 + 264576^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9101986 + ... + 9110878.

Almost surely, 280983499776 is an apocalyptic number.

80983499776 is the 284576-th square number.

It is an amenable number.

80983499776 is a deficient number, since it is larger than the sum of its proper divisors (80922620345).

80983499776 is an frugal number, since it uses more digits than its factorization.

80983499776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17806 (or 8895 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 70.

The spelling of 80983499776 in words is "eighty billion, nine hundred eighty-three million, four hundred ninety-nine thousand, seven hundred seventy-six".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 8893 17786 35572 71144 142288 284576 569152 1138304 2276608 4553216 9106432 79085449 158170898 316341796 632683592 1265367184 2530734368 5061468736 10122937472 20245874944 40491749888 80983499776