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472643612 = 227253173263
BaseRepresentation
bin11100001010111…
…111100000011100
31012221100210010222
4130022333200130
51431444043422
6114522220512
714466255500
oct3412774034
91187323128
10472643612
11222882161
12112354738
1376bc749c
1446ab4300
152b762842
hex1c2bf81c

472643612 has 72 divisors (see below), whose sum is σ = 989737056. Its totient is φ = 196839552.

The previous prime is 472643603. The next prime is 472643617. The reversal of 472643612 is 216346274.

It is a super-4 number, since 4×4726436124 (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472643617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1796993 + ... + 1797255.

It is an arithmetic number, because the mean of its divisors is an integer number (13746348).

Almost surely, 2472643612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472643612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494868528).

472643612 is an abundant number, since it is smaller than the sum of its proper divisors (517093444).

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

472643612 is a wasteful number, since it uses less digits than its factorization.

472643612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 498 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 472643612 is about 21740.3682581506. The cubic root of 472643612 is about 778.9530178095.

Adding to 472643612 its reverse (216346274), we get a palindrome (688989886).

The spelling of 472643612 in words is "four hundred seventy-two million, six hundred forty-three thousand, six hundred twelve".

Divisors: 1 2 4 7 14 28 49 53 98 106 173 196 212 263 346 371 526 692 742 1052 1211 1484 1841 2422 2597 3682 4844 5194 7364 8477 9169 10388 12887 13939 16954 18338 25774 27878 33908 36676 45499 51548 55756 64183 90998 97573 128366 181996 195146 256732 318493 390292 449281 636986 683011 898562 1273972 1366022 1797124 2229451 2411447 2732044 4458902 4822894 8917804 9645788 16880129 33760258 67520516 118160903 236321806 472643612