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3050020 = 225152501
BaseRepresentation
bin1011101000101000100100
312201221211201
423220220210
51240100040
6145212244
734632121
oct13505044
95657751
103050020
1117a3586
121031084
1382a35c
14595748
15403a9a
hex2e8a24

3050020 has 12 divisors (see below), whose sum is σ = 6405084. Its totient is φ = 1220000.

The previous prime is 3050009. The next prime is 3050023. The reversal of 3050020 is 200503.

It can be written as a sum of positive squares in 2 ways, for example, as 763876 + 2286144 = 874^2 + 1512^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 3049979 and 3050006.

It is not an unprimeable number, because it can be changed into a prime (3050023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76231 + ... + 76270.

It is an arithmetic number, because the mean of its divisors is an integer number (533757).

Almost surely, 23050020 is an apocalyptic number.

It is an amenable number.

3050020 is an abundant number, since it is smaller than the sum of its proper divisors (3355064).

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

3050020 is a wasteful number, since it uses less digits than its factorization.

3050020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152510 (or 152508 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 3050020 is about 1746.4306456313. The cubic root of 3050020 is about 145.0221131554.

Adding to 3050020 its reverse (200503), we get a palindrome (3250523).

The spelling of 3050020 in words is "three million, fifty thousand, twenty".

Divisors: 1 2 4 5 10 20 152501 305002 610004 762505 1525010 3050020