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472430421 = 33193161487
BaseRepresentation
bin11100001010001…
…011011101010101
31012220221221201000
4130022023131111
51431420233141
6114513453513
714464410111
oct3412133525
91186857630
10472430421
11222746a71
12112271299
1376b51438
1446a5a741
152b71e5b6
hex1c28b755

472430421 has 64 divisors (see below), whose sum is σ = 774553600. Its totient is φ = 283435200.

The previous prime is 472430411. The next prime is 472430447. The reversal of 472430421 is 124034274.

It is not a de Polignac number, because 472430421 - 211 = 472428373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472430411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 969840 + ... + 970326.

It is an arithmetic number, because the mean of its divisors is an integer number (12102400).

Almost surely, 2472430421 is an apocalyptic number.

It is an amenable number.

472430421 is a deficient number, since it is larger than the sum of its proper divisors (302123179).

472430421 is a wasteful number, since it uses less digits than its factorization.

472430421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 472430421 is about 21735.4645913079. The cubic root of 472430421 is about 778.8358818086.

Adding to 472430421 its reverse (124034274), we get a palindrome (596464695).

The spelling of 472430421 in words is "four hundred seventy-two million, four hundred thirty thousand, four hundred twenty-one".

Divisors: 1 3 9 19 27 31 57 61 93 171 183 279 487 513 549 589 837 1159 1461 1647 1767 1891 3477 4383 5301 5673 9253 10431 13149 15097 15903 17019 27759 29707 31293 35929 45291 51057 83277 89121 107787 135873 249831 267363 286843 323361 407619 564433 802089 860529 920917 970083 1693299 2581587 2762751 5079897 7744761 8288253 15239691 17497423 24864759 52492269 157476807 472430421