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80204530 = 25737173179
BaseRepresentation
bin1001100011111…
…01001011110010
312120220210221011
410301331023302
5131013021110
611543021134
71662504310
oct461751362
9176823834
1080204530
114130093a
1222a3a7aa
1313802503
14a91b0b0
15709448a
hex4c7d2f2

80204530 has 64 divisors (see below), whose sum is σ = 171383040. Its totient is φ = 26452224.

The previous prime is 80204483. The next prime is 80204557. The reversal of 80204530 is 3540208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447981 + ... + 448159.

It is an arithmetic number, because the mean of its divisors is an integer number (2677860).

Almost surely, 280204530 is an apocalyptic number.

80204530 is an abundant number, since it is smaller than the sum of its proper divisors (91178510).

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

80204530 is a wasteful number, since it uses less digits than its factorization.

80204530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 80204530 is about 8955.6981860713. The cubic root of 80204530 is about 431.2538309539.

Adding to 80204530 its reverse (3540208), we get a palindrome (83744738).

The spelling of 80204530 in words is "eighty million, two hundred four thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 37 70 74 173 179 185 259 346 358 370 518 865 895 1211 1253 1295 1730 1790 2422 2506 2590 6055 6265 6401 6623 12110 12530 12802 13246 30967 32005 33115 44807 46361 61934 64010 66230 89614 92722 154835 216769 224035 231805 309670 433538 448070 463610 1083845 1145779 2167690 2291558 5728895 8020453 11457790 16040906 40102265 80204530