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5031220 = 225251561
BaseRepresentation
bin10011001100010100110100
3100110121112111
4103030110310
52241444340
6255500404
760523165
oct23142464
910417474
105031220
112927037
121827704
13107206c
1494d76c
15695aea
hex4cc534

5031220 has 12 divisors (see below), whose sum is σ = 10565604. Its totient is φ = 2012480.

The previous prime is 5031217. The next prime is 5031251. The reversal of 5031220 is 221305.

It can be written as a sum of positive squares in 2 ways, for example, as 595984 + 4435236 = 772^2 + 2106^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5031220.

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, 125761 + ... + 125800.

It is an arithmetic number, because the mean of its divisors is an integer number (880467).

Almost surely, 25031220 is an apocalyptic number.

It is an amenable number.

5031220 is an abundant number, since it is smaller than the sum of its proper divisors (5534384).

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

5031220 is a wasteful number, since it uses less digits than its factorization.

5031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251570 (or 251568 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 5031220 is about 2243.0381182673. The cubic root of 5031220 is about 171.3527594675.

Adding to 5031220 its reverse (221305), we get a palindrome (5252525).

The spelling of 5031220 in words is "five million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 251561 503122 1006244 1257805 2515610 5031220