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80826250 = 25464661
BaseRepresentation
bin1001101000101…
…00111110001010
312122002101202211
410310110332022
5131142420000
612004215334
72001004021
oct464247612
9178071684
1080826250
1141695a5a
122309a54a
131398c4ab
14aa3d8b8
1571687ba
hex4d14f8a

80826250 has 20 divisors (see below), whose sum is σ = 151503066. Its totient is φ = 32330000.

The previous prime is 80826227. The next prime is 80826259. The reversal of 80826250 is 5262808.

It can be written as a sum of positive squares in 5 ways, for example, as 4036081 + 76790169 = 2009^2 + 8763^2 .

It is not an unprimeable number, because it can be changed into a prime (80826259) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 31081 + ... + 33580.

Almost surely, 280826250 is an apocalyptic number.

80826250 is a deficient number, since it is larger than the sum of its proper divisors (70676816).

80826250 is an equidigital number, since it uses as much as digits as its factorization.

80826250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64683 (or 64668 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 80826250 is about 8990.3420402118. The cubic root of 80826250 is about 432.3652781857.

The spelling of 80826250 in words is "eighty million, eight hundred twenty-six thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 625 1250 64661 129322 323305 646610 1616525 3233050 8082625 16165250 40413125 80826250