Search a number
-
+
80801047 = 23329229
BaseRepresentation
bin1001101000011…
…10110100010111
312122001010012101
410310032310113
5131141113142
612003502531
72000540365
oct464166427
9178033171
1080801047
1141679028
1223087a47
1313980b92
14aa34635
1571610b7
hex4d0ed17

80801047 has 16 divisors (see below), whose sum is σ = 87768000. Its totient is φ = 74296992.

The previous prime is 80801041. The next prime is 80801059. The reversal of 80801047 is 74010808.

It is not a de Polignac number, because 80801047 - 211 = 80798999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80801041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352729 + ... + 352957.

It is an arithmetic number, because the mean of its divisors is an integer number (5485500).

Almost surely, 280801047 is an apocalyptic number.

80801047 is a deficient number, since it is larger than the sum of its proper divisors (6966953).

80801047 is an equidigital number, since it uses as much as digits as its factorization.

80801047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 80801047 is about 8988.9402601197. The cubic root of 80801047 is about 432.3203338971.

The spelling of 80801047 in words is "eighty million, eight hundred one thousand, forty-seven".

Divisors: 1 23 29 229 529 667 5267 6641 12167 15341 121141 152743 352843 2786243 3513089 80801047