Search a number
-
+
472521432 = 23319688393
BaseRepresentation
bin11100001010100…
…001101011011000
31012221010120112210
4130022201223120
51431431141212
6114515435120
714465236335
oct3412415330
91187116483
10472521432
112227a9389
121122b5aa0
1376b839a6
1446a8198c
152b73b53c
hex1c2a1ad8

472521432 has 16 divisors (see below), whose sum is σ = 1181303640. Its totient is φ = 157507136.

The previous prime is 472521419. The next prime is 472521449. The reversal of 472521432 is 234125274.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 472521432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9844173 + ... + 9844220.

Almost surely, 2472521432 is an apocalyptic number.

It is an amenable number.

472521432 is an abundant number, since it is smaller than the sum of its proper divisors (708782208).

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

472521432 is a wasteful number, since it uses less digits than its factorization.

472521432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19688402 (or 19688398 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 472521432 is about 21737.5580965296. The cubic root of 472521432 is about 778.8858913466.

It can be divided in two parts, 47252 and 1432, that added together give a palindrome (48684).

The spelling of 472521432 in words is "four hundred seventy-two million, five hundred twenty-one thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 19688393 39376786 59065179 78753572 118130358 157507144 236260716 472521432