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472706238 = 23173455401
BaseRepresentation
bin11100001011001…
…110110010111110
31012221110222001110
4130023032302332
51432003044423
6114523422450
714466636204
oct3413166276
91187428043
10472706238
11222915214
12112384a26
1376c19b44
1446acd074
152b776193
hex1c2cecbe

472706238 has 16 divisors (see below), whose sum is σ = 950879376. Its totient is φ = 156657600.

The previous prime is 472706237. The next prime is 472706287. The reversal of 472706238 is 832607274.

It is a super-2 number, since 2×4727062382 = 446902374888225288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 472706196 and 472706205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472706237) 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 7 ways as a sum of consecutive naturals, for example, 226663 + ... + 228738.

It is an arithmetic number, because the mean of its divisors is an integer number (59429961).

Almost surely, 2472706238 is an apocalyptic number.

472706238 is an abundant number, since it is smaller than the sum of its proper divisors (478173138).

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

472706238 is a wasteful number, since it uses less digits than its factorization.

472706238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455579.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 472706238 is about 21741.8085264313. The cubic root of 472706238 is about 778.9874204447.

The spelling of 472706238 in words is "four hundred seventy-two million, seven hundred six thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 173 346 519 1038 455401 910802 1366203 2732406 78784373 157568746 236353119 472706238