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80152238 = 240076119
BaseRepresentation
bin1001100011100…
…00011010101110
312120211011012102
410301300122232
5131004332423
611541535102
71662165665
oct461603256
9176734172
1080152238
1141275621
1222a14492
13137b477a
14a905ddc
157083c28
hex4c706ae

80152238 has 4 divisors (see below), whose sum is σ = 120228360. Its totient is φ = 40076118.

The previous prime is 80152213. The next prime is 80152273. The reversal of 80152238 is 83225108.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80152238.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 20038058 + ... + 20038061.

It is an arithmetic number, because the mean of its divisors is an integer number (30057090).

Almost surely, 280152238 is an apocalyptic number.

80152238 is a deficient number, since it is larger than the sum of its proper divisors (40076122).

80152238 is a wasteful number, since it uses less digits than its factorization.

80152238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40076121.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 80152238 is about 8952.7782280139. The cubic root of 80152238 is about 431.1600871712.

The spelling of 80152238 in words is "eighty million, one hundred fifty-two thousand, two hundred thirty-eight".

Divisors: 1 2 40076119 80152238