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80946010 = 2517237757
BaseRepresentation
bin1001101001100…
…10001101011010
312122022111001101
410310302031122
5131210233020
612010542014
72002013125
oct464621532
9178274041
1080946010
1141767a32
122313790a
1313a01b62
14aa713bc
15718e00a
hex4d3235a

80946010 has 48 divisors (see below), whose sum is σ = 159170904. Its totient is φ = 29611008.

The previous prime is 80945987. The next prime is 80946029. The reversal of 80946010 is 1064908.

It is a Cunningham number, because it is equal to 89972+1.

It can be written as a sum of positive squares in 12 ways, for example, as 49999041 + 30946969 = 7071^2 + 5563^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80946010.

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 23 ways as a sum of consecutive naturals, for example, 106552 + ... + 107308.

Almost surely, 280946010 is an apocalyptic number.

80946010 is a deficient number, since it is larger than the sum of its proper divisors (78224894).

80946010 is a wasteful number, since it uses less digits than its factorization.

80946010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 80946010 is about 8997.0000555741. Note that the first 4 decimals coincide. The cubic root of 80946010 is about 432.5787175598.

The spelling of 80946010 in words is "eighty million, nine hundred forty-six thousand, ten".

Divisors: 1 2 5 10 17 34 37 74 85 170 185 289 370 578 629 757 1258 1445 1514 2890 3145 3785 6290 7570 10693 12869 21386 25738 28009 53465 56018 64345 106930 128690 140045 218773 280090 437546 476153 952306 1093865 2187730 2380765 4761530 8094601 16189202 40473005 80946010