Search a number
-
+
431342212 = 227791091789
BaseRepresentation
bin11001101101011…
…100001010000100
31010001122110021111
4121231130022010
51340410422322
6110445054404
713455230320
oct3155341204
91101573244
10431342212
11201532874
12100557404
136b4964a2
1441402980
1527d05177
hex19b5c284

431342212 has 48 divisors (see below), whose sum is σ = 882112000. Its totient is φ = 180745344.

The previous prime is 431342203. The next prime is 431342227. The reversal of 431342212 is 212243134.

It is a super-2 number, since 2×4313422122 = 372112207706105888, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 240214 + ... + 242002.

Almost surely, 2431342212 is an apocalyptic number.

It is an amenable number.

431342212 is an abundant number, since it is smaller than the sum of its proper divisors (450769788).

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

431342212 is a wasteful number, since it uses less digits than its factorization.

431342212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988 (or 1986 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 431342212 is about 20768.7797426811. The cubic root of 431342212 is about 755.5687494076.

Adding to 431342212 its reverse (212243134), we get a palindrome (643585346).

The spelling of 431342212 in words is "four hundred thirty-one million, three hundred forty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 79 109 158 218 316 436 553 763 1106 1526 1789 2212 3052 3578 7156 8611 12523 17222 25046 34444 50092 60277 120554 141331 195001 241108 282662 390002 565324 780004 989317 1365007 1978634 2730014 3957268 5460028 15405079 30810158 61620316 107835553 215671106 431342212