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80811410 = 2541197101
BaseRepresentation
bin1001101000100…
…01010110010010
312122001122102012
410310101112102
5131141431120
612004022522
72000612531
oct464212622
9178048365
1080811410
1141685899
1223091a42
1313985804
14aa38318
1571641c5
hex4d11592

80811410 has 16 divisors (see below), whose sum is σ = 149009112. Its totient is φ = 31536000.

The previous prime is 80811407. The next prime is 80811439. The reversal of 80811410 is 1411808.

It can be written as a sum of positive squares in 4 ways, for example, as 52113961 + 28697449 = 7219^2 + 5357^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98141 + ... + 98960.

Almost surely, 280811410 is an apocalyptic number.

80811410 is a deficient number, since it is larger than the sum of its proper divisors (68197702).

80811410 is a wasteful number, since it uses less digits than its factorization.

80811410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197149.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 80811410 is about 8989.5166722133. The cubic root of 80811410 is about 432.3388152752.

The spelling of 80811410 in words is "eighty million, eight hundred eleven thousand, four hundred ten".

Divisors: 1 2 5 10 41 82 205 410 197101 394202 985505 1971010 8081141 16162282 40405705 80811410