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2980205 = 55771033
BaseRepresentation
bin1011010111100101101101
312121102001222
423113211231
51230331310
6143513125
734221434
oct13274555
95542058
102980205
111756088
12bb87a5
13804647
1457811b
153dd055
hex2d796d

2980205 has 8 divisors (see below), whose sum is σ = 3585912. Its totient is φ = 2377728.

The previous prime is 2980193. The next prime is 2980217. The reversal of 2980205 is 5020892.

It is an interprime number because it is at equal distance from previous prime (2980193) and next prime (2980217).

It can be written as a sum of positive squares in 4 ways, for example, as 2033476 + 946729 = 1426^2 + 973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2980205 - 24 = 2980189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2369 + ... + 3401.

It is an arithmetic number, because the mean of its divisors is an integer number (448239).

22980205 is an apocalyptic number.

It is an amenable number.

2980205 is a deficient number, since it is larger than the sum of its proper divisors (605707).

2980205 is a wasteful number, since it uses less digits than its factorization.

2980205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615.

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

The square root of 2980205 is about 1726.3270257978. The cubic root of 2980205 is about 143.9070419851.

The spelling of 2980205 in words is "two million, nine hundred eighty thousand, two hundred five".

Divisors: 1 5 577 1033 2885 5165 596041 2980205