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2990025 = 325297137
BaseRepresentation
bin1011011001111111001001
312121220112200
423121333021
51231140100
6144030413
734262163
oct13317711
95556480
102990025
1117624a5
121002409
13808c5c
1457b933
153e0e00
hex2d9fc9

2990025 has 36 divisors (see below), whose sum is σ = 5450172. Its totient is φ = 1566720.

The previous prime is 2990021. The next prime is 2990027. The reversal of 2990025 is 5200992.

It can be written as a sum of positive squares in 6 ways, for example, as 45369 + 2944656 = 213^2 + 1716^2 .

It is not a de Polignac number, because 2990025 - 22 = 2990021 is a prime.

2990025 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2990021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21757 + ... + 21893.

22990025 is an apocalyptic number.

2990025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2990025 is a deficient number, since it is larger than the sum of its proper divisors (2460147).

2990025 is a wasteful number, since it uses less digits than its factorization.

2990025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 2990025 is about 1729.1688755006. The cubic root of 2990025 is about 144.0649302090.

The spelling of 2990025 in words is "two million, nine hundred ninety thousand, twenty-five".

Divisors: 1 3 5 9 15 25 45 75 97 137 225 291 411 485 685 873 1233 1455 2055 2425 3425 4365 6165 7275 10275 13289 21825 30825 39867 66445 119601 199335 332225 598005 996675 2990025