Search a number
-
+
80289701 = 238133721
BaseRepresentation
bin1001100100100…
…01111110100101
312121002010202122
410302101332211
5131023232301
611544515325
71663310522
oct462217645
9177063678
1080289701
1141359928
1222a7bb45
13138321cb
14a940149
1570ae81b
hex4c91fa5

80289701 has 4 divisors (see below), whose sum is σ = 80325804. Its totient is φ = 80253600.

The previous prime is 80289679. The next prime is 80289733. The reversal of 80289701 is 10798208.

It is a happy number.

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 616225 + 79673476 = 785^2 + 8926^2 .

It is a cyclic number.

It is not a de Polignac number, because 80289701 - 26 = 80289637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80289761) 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, 14480 + ... + 19241.

It is an arithmetic number, because the mean of its divisors is an integer number (20081451).

Almost surely, 280289701 is an apocalyptic number.

It is an amenable number.

80289701 is a deficient number, since it is larger than the sum of its proper divisors (36103).

80289701 is a wasteful number, since it uses less digits than its factorization.

80289701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36102.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 80289701 is about 8960.4520533286. The cubic root of 80289701 is about 431.4064296750.

The spelling of 80289701 in words is "eighty million, two hundred eighty-nine thousand, seven hundred one".

Divisors: 1 2381 33721 80289701