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80828475 = 3527132911
BaseRepresentation
bin1001101000101…
…01100000111011
312122002111211020
410310111200323
5131143002400
612004233523
72001013350
oct464254073
9178074736
1080828475
11416976a2
122309b8a3
1313990500
14aa40627
1571692a0
hex4d1583b

80828475 has 72 divisors (see below), whose sum is σ = 165560832. Its totient is φ = 34070400.

The previous prime is 80828453. The next prime is 80828483. The reversal of 80828475 is 57482808.

It is not a de Polignac number, because 80828475 - 26 = 80828411 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 88270 + ... + 89180.

It is an arithmetic number, because the mean of its divisors is an integer number (2299456).

Almost surely, 280828475 is an apocalyptic number.

80828475 is an abundant number, since it is smaller than the sum of its proper divisors (84732357).

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

80828475 is a wasteful number, since it uses less digits than its factorization.

80828475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 80828475 is about 8990.4657832617. The cubic root of 80828475 is about 432.3692455598.

The spelling of 80828475 in words is "eighty million, eight hundred twenty-eight thousand, four hundred seventy-five".

Divisors: 1 3 5 7 13 15 21 25 35 39 65 75 91 105 169 175 195 273 325 455 507 525 845 911 975 1183 1365 2275 2535 2733 3549 4225 4555 5915 6377 6825 11843 12675 13665 17745 19131 22775 29575 31885 35529 59215 68325 82901 88725 95655 153959 159425 177645 248703 296075 414505 461877 478275 769795 888225 1077713 1243515 2072525 2309385 3233139 3848975 5388565 6217575 11546925 16165695 26942825 80828475