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472227912 = 23321321972
BaseRepresentation
bin11100001001011…
…010000001001000
31012220120122220200
4130021122001020
51431342243122
6114505252200
714462604522
oct3411320110
91186518820
10472227912
11222618902
12112194060
1376ab0200
1446a06a12
152b6ce5ac
hex1c25a048

472227912 has 108 divisors (see below), whose sum is σ = 1391964795. Its totient is φ = 144563328.

The previous prime is 472227871. The next prime is 472227947. The reversal of 472227912 is 219722274.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 350213796 + 122014116 = 18714^2 + 11046^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=15366.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2396998 + ... + 2397194.

Almost surely, 2472227912 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 472227912

472227912 is an abundant number, since it is smaller than the sum of its proper divisors (919736883).

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

472227912 is a wasteful number, since it uses less digits than its factorization.

472227912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 215 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 472227912 is about 21730.8055994250. The cubic root of 472227912 is about 778.7245823030.

The spelling of 472227912 in words is "four hundred seventy-two million, two hundred twenty-seven thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 169 197 234 312 338 394 468 507 591 676 788 936 1014 1182 1352 1521 1576 1773 2028 2364 2561 3042 3546 4056 4728 5122 6084 7092 7683 10244 12168 14184 15366 20488 23049 30732 33293 38809 46098 61464 66586 77618 92196 99879 116427 133172 155236 184392 199758 232854 266344 299637 310472 349281 399516 465708 504517 599274 698562 799032 931416 1009034 1198548 1397124 1513551 2018068 2397096 2794248 3027102 4036136 4540653 6054204 6558721 9081306 12108408 13117442 18162612 19676163 26234884 36325224 39352326 52469768 59028489 78704652 118056978 157409304 236113956 472227912