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4831220 = 225241561
BaseRepresentation
bin10010011011011111110100
3100002110012002
4102123133310
52214044340
6251314432
756031122
oct22333764
910073162
104831220
1127aa849
12174ba18
131002014
148da912
15656715
hex49b7f4

4831220 has 12 divisors (see below), whose sum is σ = 10145604. Its totient is φ = 1932480.

The previous prime is 4831193. The next prime is 4831237. The reversal of 4831220 is 221384.

It can be written as a sum of positive squares in 2 ways, for example, as 1747684 + 3083536 = 1322^2 + 1756^2 .

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: 241561 = 4831220 / (4 + 8 + 3 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 4831192 and 4831201.

It is a congruent number.

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, 120761 + ... + 120800.

It is an arithmetic number, because the mean of its divisors is an integer number (845467).

Almost surely, 24831220 is an apocalyptic number.

It is an amenable number.

4831220 is an abundant number, since it is smaller than the sum of its proper divisors (5314384).

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

4831220 is a wasteful number, since it uses less digits than its factorization.

4831220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241570 (or 241568 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4831220 is about 2198.0036396694. The cubic root of 4831220 is about 169.0514647831.

The spelling of 4831220 in words is "four million, eight hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 241561 483122 966244 1207805 2415610 4831220