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80048521 = 726343481
BaseRepresentation
bin1001100010101…
…11000110001001
312120121212221001
410301113012021
5130443023041
611535415001
71661254420
oct461270611
9176555831
1080048521
1141204703
1222984461
13137794b7
14a8ba2b7
157063131
hex4c57189

80048521 has 8 divisors (see below), whose sum is σ = 91833984. Its totient is φ = 68350560.

The previous prime is 80048513. The next prime is 80048543. The reversal of 80048521 is 12584008.

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

It is a cyclic number.

It is not a de Polignac number, because 80048521 - 23 = 80048513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80048521.

It is not an unprimeable number, because it can be changed into a prime (80048581) 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, 19900 + ... + 23581.

It is an arithmetic number, because the mean of its divisors is an integer number (11479248).

Almost surely, 280048521 is an apocalyptic number.

It is an amenable number.

80048521 is a deficient number, since it is larger than the sum of its proper divisors (11785463).

80048521 is a wasteful number, since it uses less digits than its factorization.

80048521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43751.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 80048521 is about 8946.9839052052. The cubic root of 80048521 is about 430.9740331720.

The spelling of 80048521 in words is "eighty million, forty-eight thousand, five hundred twenty-one".

Divisors: 1 7 263 1841 43481 304367 11435503 80048521