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472401228 = 223133028213
BaseRepresentation
bin11100001010000…
…100010101001100
31012220220110122210
4130022010111030
51431413314403
6114513110420
714464226025
oct3412042514
91186813583
10472401228
11222727042
12112258410
1376b41070
1446a4dc4c
152b715b03
hex1c28454c

472401228 has 24 divisors (see below), whose sum is σ = 1187059888. Its totient is φ = 145354176.

The previous prime is 472401217. The next prime is 472401229. The reversal of 472401228 is 822104274.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 472401195 and 472401204.

It is not an unprimeable number, because it can be changed into a prime (472401229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1513951 + ... + 1514262.

Almost surely, 2472401228 is an apocalyptic number.

It is an amenable number.

472401228 is an abundant number, since it is smaller than the sum of its proper divisors (714658660).

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

472401228 is a wasteful number, since it uses less digits than its factorization.

472401228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028233 (or 3028231 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 472401228 is about 21734.7930286902. The cubic root of 472401228 is about 778.8198392175.

The spelling of 472401228 in words is "four hundred seventy-two million, four hundred one thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 3028213 6056426 9084639 12112852 18169278 36338556 39366769 78733538 118100307 157467076 236200614 472401228