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80327545 = 561263369
BaseRepresentation
bin1001100100110…
…11001101111001
312121011001200021
410302123031321
5131030440140
611545410441
71663526044
oct462331571
9177131607
1080327545
1141385301
1222a99a21
13138464bc
14a94dc5b
1570bab4a
hex4c9b379

80327545 has 8 divisors (see below), whose sum is σ = 97973640. Its totient is φ = 63208320.

The previous prime is 80327531. The next prime is 80327549. The reversal of 80327545 is 54572308.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9144576 + 71182969 = 3024^2 + 8437^2 .

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

It is not a de Polignac number, because 80327545 - 213 = 80319353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80327545.

It is not an unprimeable number, because it can be changed into a prime (80327549) 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, 131380 + ... + 131989.

It is an arithmetic number, because the mean of its divisors is an integer number (12246705).

Almost surely, 280327545 is an apocalyptic number.

It is an amenable number.

80327545 is a deficient number, since it is larger than the sum of its proper divisors (17646095).

80327545 is a wasteful number, since it uses less digits than its factorization.

80327545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263435.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 80327545 is about 8962.5635283662. The cubic root of 80327545 is about 431.4741991826.

The spelling of 80327545 in words is "eighty million, three hundred twenty-seven thousand, five hundred forty-five".

Divisors: 1 5 61 305 263369 1316845 16065509 80327545