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6472420 = 2251092969
BaseRepresentation
bin11000101100001011100100
3110011211111021
4120230023210
53124104140
6350420524
7106005013
oct30541344
913154437
106472420
113720909
122201744
131458046
14c06a7a
1587cb4a
hex62c2e4

6472420 has 24 divisors (see below), whose sum is σ = 13721400. Its totient is φ = 2564352.

The previous prime is 6472387. The next prime is 6472421. The reversal of 6472420 is 242746.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 6441444 = 176^2 + 2538^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6472421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696 + ... + 3664.

It is an arithmetic number, because the mean of its divisors is an integer number (571725).

Almost surely, 26472420 is an apocalyptic number.

It is an amenable number.

6472420 is an abundant number, since it is smaller than the sum of its proper divisors (7248980).

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

6472420 is a wasteful number, since it uses less digits than its factorization.

6472420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087 (or 3085 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 6472420 is about 2544.0951240077. The cubic root of 6472420 is about 186.3612280979.

The spelling of 6472420 in words is "six million, four hundred seventy-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 2969 5938 11876 14845 29690 59380 323621 647242 1294484 1618105 3236210 6472420