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612434452 = 227172694783
BaseRepresentation
bin100100100000010…
…000001000010100
31120200101220010111
4210200100020110
52223240400302
6140434332404
721114415120
oct4440201024
91520356114
10612434452
11294781083
1215112a104
1399b60566
145b4a2580
1538b770d7
hex24810214

612434452 has 48 divisors (see below), whose sum is σ = 1302013440. Its totient is φ = 246062592.

The previous prime is 612434447. The next prime is 612434453. The reversal of 612434452 is 254434216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612434453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125653 + ... + 130435.

It is an arithmetic number, because the mean of its divisors is an integer number (27125280).

Almost surely, 2612434452 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 612434452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651006720).

612434452 is an abundant number, since it is smaller than the sum of its proper divisors (689578988).

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

612434452 is a wasteful number, since it uses less digits than its factorization.

612434452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080 (or 5078 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 612434452 is about 24747.4130365176. The cubic root of 612434452 is about 849.2193302840.

Adding to 612434452 its reverse (254434216), we get a palindrome (866868668).

The spelling of 612434452 in words is "six hundred twelve million, four hundred thirty-four thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 269 476 538 1076 1883 3766 4573 4783 7532 9146 9566 18292 19132 32011 33481 64022 66962 81311 128044 133924 162622 325244 569177 1138354 1286627 2276708 2573254 5146508 9006389 18012778 21872659 36025556 43745318 87490636 153108613 306217226 612434452