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80827258 = 240413629
BaseRepresentation
bin1001101000101…
…01001101111010
312122002110011011
410310111031322
5131142433013
612004224134
72001006661
oct464251572
9178073134
1080827258
1141696796
122309b04a
131398caa5
14aa3ddd8
157168c3d
hex4d1537a

80827258 has 4 divisors (see below), whose sum is σ = 121240890. Its totient is φ = 40413628.

The previous prime is 80827223. The next prime is 80827289. The reversal of 80827258 is 85272808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50168889 + 30658369 = 7083^2 + 5537^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80827258.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20206813 + ... + 20206816.

Almost surely, 280827258 is an apocalyptic number.

80827258 is a deficient number, since it is larger than the sum of its proper divisors (40413632).

80827258 is a wasteful number, since it uses less digits than its factorization.

80827258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40413631.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 80827258 is about 8990.3981001956. The cubic root of 80827258 is about 432.3670755489.

The spelling of 80827258 in words is "eighty million, eight hundred twenty-seven thousand, two hundred fifty-eight".

Divisors: 1 2 40413629 80827258