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80025 = 3521197
BaseRepresentation
bin10011100010011001
311001202220
4103202121
510030100
61414253
7452211
oct234231
9131686
1080025
1155140
123a389
132a56a
1421241
1518aa0
hex13899

80025 has 24 divisors (see below), whose sum is σ = 145824. Its totient is φ = 38400.

The previous prime is 80021. The next prime is 80039. The reversal of 80025 is 52008.

It is not a de Polignac number, because 80025 - 22 = 80021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 79986 and 80013.

It is not an unprimeable number, because it can be changed into a prime (80021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 777 + ... + 873.

It is an arithmetic number, because the mean of its divisors is an integer number (6076).

280025 is an apocalyptic number.

It is an amenable number.

80025 is a deficient number, since it is larger than the sum of its proper divisors (65799).

80025 is a wasteful number, since it uses less digits than its factorization.

80025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 80025 is about 282.8869031963. The cubic root of 80025 is about 43.0931817388.

80025 divided by its sum of digits (15) gives a palindrome (5335).

The spelling of 80025 in words is "eighty thousand, twenty-five".

Divisors: 1 3 5 11 15 25 33 55 75 97 165 275 291 485 825 1067 1455 2425 3201 5335 7275 16005 26675 80025