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472742020 = 22523637101
BaseRepresentation
bin11100001011010…
…111100010000100
31012221112210010201
4130023113202010
51432010221040
6114524300244
714500145422
oct3413274204
91187483121
10472742020
1122293a093
121123a1684
1376c3020a
1446adc112
152b781a9a
hex1c2d7884

472742020 has 12 divisors (see below), whose sum is σ = 992758284. Its totient is φ = 189096800.

The previous prime is 472742003. The next prime is 472742041. The reversal of 472742020 is 20247274.

It can be written as a sum of positive squares in 2 ways, for example, as 111133764 + 361608256 = 10542^2 + 19016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 472742020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11818531 + ... + 11818570.

It is an arithmetic number, because the mean of its divisors is an integer number (82729857).

Almost surely, 2472742020 is an apocalyptic number.

It is an amenable number.

472742020 is an abundant number, since it is smaller than the sum of its proper divisors (520016264).

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

472742020 is a wasteful number, since it uses less digits than its factorization.

472742020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23637110 (or 23637108 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 472742020 is about 21742.6313954866. The cubic root of 472742020 is about 779.0070753750.

Adding to 472742020 its reverse (20247274), we get a palindrome (492989294).

It can be divided in two parts, 47274 and 2020, that added together give a palindrome (49294).

The spelling of 472742020 in words is "four hundred seventy-two million, seven hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 23637101 47274202 94548404 118185505 236371010 472742020