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2980025 = 52199599
BaseRepresentation
bin1011010111100010111001
312121101211022
423113202321
51230330100
6143512225
734221056
oct13274271
95541738
102980025
111755a34
12bb8675
13804539
1457802d
153dce85
hex2d78b9

2980025 has 12 divisors (see below), whose sum is σ = 3720000. Its totient is φ = 2368080.

The previous prime is 2980007. The next prime is 2980027. The reversal of 2980025 is 5200892.

It is not a de Polignac number, because 2980025 - 216 = 2914489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2979976 and 2980003.

It is not an unprimeable number, because it can be changed into a prime (2980027) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 4676 + ... + 5274.

It is an arithmetic number, because the mean of its divisors is an integer number (310000).

22980025 is an apocalyptic number.

2980025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2980025 is a deficient number, since it is larger than the sum of its proper divisors (739975).

2980025 is a wasteful number, since it uses less digits than its factorization.

2980025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2980025 is about 1726.2748912036. The cubic root of 2980025 is about 143.9041446688.

The spelling of 2980025 in words is "two million, nine hundred eighty thousand, twenty-five".

Divisors: 1 5 25 199 599 995 2995 4975 14975 119201 596005 2980025