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80152297 = 174714841
BaseRepresentation
bin1001100011100…
…00011011101001
312120211011021121
410301300123221
5131004333142
611541535241
71662166111
oct461603351
9176734247
1080152297
1141275675
1222a14521
13137b47c4
14a906041
157083c67
hex4c706e9

80152297 has 4 divisors (see below), whose sum is σ = 84867156. Its totient is φ = 75437440.

The previous prime is 80152277. The next prime is 80152327. The reversal of 80152297 is 79225108.

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 74718736 + 5433561 = 8644^2 + 2331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80152297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80152207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357404 + ... + 2357437.

It is an arithmetic number, because the mean of its divisors is an integer number (21216789).

Almost surely, 280152297 is an apocalyptic number.

It is an amenable number.

80152297 is a deficient number, since it is larger than the sum of its proper divisors (4714859).

80152297 is a wasteful number, since it uses less digits than its factorization.

80152297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714858.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 80152297 is about 8952.7815230799. The cubic root of 80152297 is about 431.1601929634.

The spelling of 80152297 in words is "eighty million, one hundred fifty-two thousand, two hundred ninety-seven".

Divisors: 1 17 4714841 80152297