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80704855396 = 221123723492
BaseRepresentation
bin100101100101001100…
…0100101110101100100
321201022110102102211101
41023022120211311210
52310240420333041
6101024133045444
75554640644414
oct1131230456544
9251273372741
1080704855396
1131254872400
1213783a86884
1377c2184209
143c98618644
1521752eeb31
hex12ca625d64

80704855396 has 81 divisors (see below), whose sum is σ = 160007671467. Its totient is φ = 35590294080.

The previous prime is 80704855381. The next prime is 80704855397. The reversal of 80704855396 is 69355840708.

The square root of 80704855396 is 284086.

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 33382944100 + 47321911296 = 182710^2 + 217536^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80704855397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 231245830 + ... + 231246178.

Almost surely, 280704855396 is an apocalyptic number.

80704855396 is the 284086-th square number.

It is an amenable number.

80704855396 is a deficient number, since it is larger than the sum of its proper divisors (79302816071).

80704855396 is a wasteful number, since it uses less digits than its factorization.

80704855396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 80704855396 in words is "eighty billion, seven hundred four million, eight hundred fifty-five thousand, three hundred ninety-six".

Divisors: 1 2 4 11 22 37 44 74 121 148 242 349 407 484 698 814 1369 1396 1628 2738 3839 4477 5476 7678 8954 12913 15059 15356 17908 25826 30118 42229 51652 60236 84458 121801 142043 165649 168916 243602 284086 331298 477781 487204 568172 662596 955562 1339811 1562473 1911124 2679622 3124946 4506637 5255591 5359244 6249892 9013274 10511182 14737921 18026548 21022364 29475842 49573007 57811501 58951684 99146014 115623002 166745569 198292028 231246004 333491138 545303077 666982276 1090606154 1834201259 2181212308 3668402518 7336805036 20176213849 40352427698 80704855396