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5481620 = 225274081
BaseRepresentation
bin10100111010010010010100
3101022111100222
4110322102110
52400402440
6313253512
764410254
oct24722224
911274328
105481620
113104471
121a04298
13119c081
14a29964
157342b5
hex53a494

5481620 has 12 divisors (see below), whose sum is σ = 11511444. Its totient is φ = 2192640.

The previous prime is 5481617. The next prime is 5481629. The reversal of 5481620 is 261845.

It can be written as a sum of positive squares in 2 ways, for example, as 2256004 + 3225616 = 1502^2 + 1796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5481620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5481629) 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, 137021 + ... + 137060.

It is an arithmetic number, because the mean of its divisors is an integer number (959287).

Almost surely, 25481620 is an apocalyptic number.

It is an amenable number.

5481620 is an abundant number, since it is smaller than the sum of its proper divisors (6029824).

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

5481620 is a wasteful number, since it uses less digits than its factorization.

5481620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274090 (or 274088 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 5481620 is about 2341.2859714268. The cubic root of 5481620 is about 176.3205676209.

The spelling of 5481620 in words is "five million, four hundred eighty-one thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 274081 548162 1096324 1370405 2740810 5481620