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472820473 = 1725330869
BaseRepresentation
bin11100001011101…
…010101011111001
31012221200202202101
4130023222223321
51432020223343
6114530103401
714500623226
oct3413525371
91187622671
10472820473
11222993024
1211241ab61
1376c59b38
1446b1c94d
152b799e4d
hex1c2eaaf9

472820473 has 12 divisors (see below), whose sum is σ = 511762860. Its totient is φ = 436596992.

The previous prime is 472820461. The next prime is 472820479. The reversal of 472820473 is 374028274.

It can be written as a sum of positive squares in 6 ways, for example, as 7469289 + 465351184 = 2733^2 + 21572^2 .

It is a de Polignac number, because none of the positive numbers 2k-472820473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472820479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118 + ... + 30751.

It is an arithmetic number, because the mean of its divisors is an integer number (42646905).

Almost surely, 2472820473 is an apocalyptic number.

It is an amenable number.

472820473 is a deficient number, since it is larger than the sum of its proper divisors (38942387).

472820473 is a wasteful number, since it uses less digits than its factorization.

472820473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30956 (or 30939 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 472820473 is about 21744.4354490982. The cubic root of 472820473 is about 779.0501658691.

The spelling of 472820473 in words is "four hundred seventy-two million, eight hundred twenty thousand, four hundred seventy-three".

Divisors: 1 17 53 289 901 15317 30869 524773 1636057 8921141 27812969 472820473