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80526081 = 373367699
BaseRepresentation
bin1001100110010…
…11101100000001
312121112011000110
410303023230001
5131103313311
611553541533
71665313626
oct463135401
9177464013
1080526081
1141500489
1222b748a9
13138b598c
14a9a234d
1571098a6
hex4ccbb01

80526081 has 8 divisors (see below), whose sum is σ = 108839200. Its totient is φ = 52948512.

The previous prime is 80526079. The next prime is 80526101. The reversal of 80526081 is 18062508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80526081 - 21 = 80526079 is a prime.

It is a super-2 number, since 2×805260812 = 12968899442437122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80526041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183631 + ... + 184068.

It is an arithmetic number, because the mean of its divisors is an integer number (13604900).

Almost surely, 280526081 is an apocalyptic number.

It is an amenable number.

80526081 is a deficient number, since it is larger than the sum of its proper divisors (28313119).

80526081 is a wasteful number, since it uses less digits than its factorization.

80526081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367775.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 80526081 is about 8973.6325420646. The cubic root of 80526081 is about 431.8293811396.

Adding to 80526081 its reverse (18062508), we get a palindrome (98588589).

The spelling of 80526081 in words is "eighty million, five hundred twenty-six thousand, eighty-one".

Divisors: 1 3 73 219 367699 1103097 26842027 80526081