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80432797 = 174731341
BaseRepresentation
bin1001100101101…
…00111010011101
312121100102001111
410302310322131
5131042322142
611551542021
71664444644
oct462647235
9177312044
1080432797
1141447395
1222b2a911
1313882393
14a97a35b
1570dbe17
hex4cb4e9d

80432797 has 4 divisors (see below), whose sum is σ = 85164156. Its totient is φ = 75701440.

The previous prime is 80432791. The next prime is 80432813. The reversal of 80432797 is 79723408.

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

It can be written as a sum of positive squares in 2 ways, for example, as 67716441 + 12716356 = 8229^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 80432797 - 215 = 80400029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80432791) 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, 2365654 + ... + 2365687.

It is an arithmetic number, because the mean of its divisors is an integer number (21291039).

Almost surely, 280432797 is an apocalyptic number.

It is an amenable number.

80432797 is a deficient number, since it is larger than the sum of its proper divisors (4731359).

80432797 is a wasteful number, since it uses less digits than its factorization.

80432797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731358.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 80432797 is about 8968.4333637487. The cubic root of 80432797 is about 431.6625683651.

The spelling of 80432797 in words is "eighty million, four hundred thirty-two thousand, seven hundred ninety-seven".

Divisors: 1 17 4731341 80432797