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80008529 = 153152259
BaseRepresentation
bin1001100010011…
…01010101010001
312120112212001212
410301031111101
5130440233104
611534505505
71661030006
oct461152521
9176485055
1080008529
1141187657
1222965295
1313764233
14a8a98ad
15705636e
hex4c4d551

80008529 has 4 divisors (see below), whose sum is σ = 80062320. Its totient is φ = 79954740.

The previous prime is 80008517. The next prime is 80008549. The reversal of 80008529 is 92580008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80008529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80008495 and 80008504.

It is not an unprimeable number, because it can be changed into a prime (80008549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24599 + ... + 27660.

It is an arithmetic number, because the mean of its divisors is an integer number (20015580).

Almost surely, 280008529 is an apocalyptic number.

It is an amenable number.

80008529 is a deficient number, since it is larger than the sum of its proper divisors (53791).

80008529 is a wasteful number, since it uses less digits than its factorization.

80008529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53790.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 80008529 is about 8944.7486828865. The cubic root of 80008529 is about 430.9022501068.

The spelling of 80008529 in words is "eighty million, eight thousand, five hundred twenty-nine".

Divisors: 1 1531 52259 80008529