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3049220 = 225152461
BaseRepresentation
bin1011101000011100000100
312201220202002
423220130010
51240033340
6145204432
734626566
oct13503404
95656662
103049220
1117a2a19
121030718
13829b95
14595336
15403715
hex2e8704

3049220 has 12 divisors (see below), whose sum is σ = 6403404. Its totient is φ = 1219680.

The previous prime is 3049201. The next prime is 3049261. The reversal of 3049220 is 229403.

It can be written as a sum of positive squares in 2 ways, for example, as 2316484 + 732736 = 1522^2 + 856^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 152461 = 3049220 / (3 + 0 + 4 + 9 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 3049192 and 3049201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76211 + ... + 76250.

It is an arithmetic number, because the mean of its divisors is an integer number (533617).

Almost surely, 23049220 is an apocalyptic number.

It is an amenable number.

3049220 is an abundant number, since it is smaller than the sum of its proper divisors (3354184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3049220 is a wasteful number, since it uses less digits than its factorization.

3049220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152470 (or 152468 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3049220 is about 1746.2015920277. The cubic root of 3049220 is about 145.0094326008.

The spelling of 3049220 in words is "three million, forty-nine thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 152461 304922 609844 762305 1524610 3049220