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3012013220 = 225150600661
BaseRepresentation
bin1011001110000111…
…1010110010100100
321202220122010101012
42303201322302210
522132033410340
61214513521352
7134432455436
oct26341726244
97686563335
103012013220
111306226127
12700873258
1339002c558
14208052656
15129668565
hexb387aca4

3012013220 has 12 divisors (see below), whose sum is σ = 6325227804. Its totient is φ = 1204805280.

The previous prime is 3012013201. The next prime is 3012013243. The reversal of 3012013220 is 223102103.

It is a happy number.

3012013220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 873320704 + 2138692516 = 29552^2 + 46246^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3012013195 and 3012013204.

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, 75300311 + ... + 75300350.

It is an arithmetic number, because the mean of its divisors is an integer number (527102317).

Almost surely, 23012013220 is an apocalyptic number.

It is an amenable number.

3012013220 is an abundant number, since it is smaller than the sum of its proper divisors (3313214584).

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

3012013220 is a wasteful number, since it uses less digits than its factorization.

3012013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150600670 (or 150600668 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3012013220 is about 54881.8113768123. The cubic root of 3012013220 is about 1444.1721242886.

Adding to 3012013220 its reverse (223102103), we get a palindrome (3235115323).

The spelling of 3012013220 in words is "three billion, twelve million, thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 150600661 301201322 602402644 753003305 1506006610 3012013220