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80782508330 = 25241255713109
BaseRepresentation
bin100101100111100000…
…0110100000100101010
321201111212112121121222
41023033000310010222
52310420310231310
6101035545302042
75556602663666
oct1131700640452
9251455477558
1080782508330
1131294690187
12137a5a94922
1378052a21b4
143ca4a6d8a6
15217c03d055
hex12cf03412a

80782508330 has 32 divisors (see below), whose sum is σ = 146080115280. Its totient is φ = 32163886080.

The previous prime is 80782508329. The next prime is 80782508351. The reversal of 80782508330 is 3380528708.

It can be written as a sum of positive squares in 8 ways, for example, as 37675198201 + 43107310129 = 194101^2 + 207623^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6155816 + ... + 6168924.

Almost surely, 280782508330 is an apocalyptic number.

80782508330 is a deficient number, since it is larger than the sum of its proper divisors (65297606950).

80782508330 is a wasteful number, since it uses less digits than its factorization.

80782508330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15914.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 80782508330 in words is "eighty billion, seven hundred eighty-two million, five hundred eight thousand, three hundred thirty".

Divisors: 1 2 5 10 241 482 1205 2410 2557 5114 12785 13109 25570 26218 65545 131090 616237 1232474 3081185 3159269 6162370 6318538 15796345 31592690 33519713 67039426 167598565 335197130 8078250833 16156501666 40391254165 80782508330