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4431244312 = 2311291919091
BaseRepresentation
bin1000010000001111…
…10110110000011000
3102102211011112102201
410020013312300120
533033344304222
62011412535544
7214544645425
oct41007666030
912384145381
104431244312
11197435a490
12a380215b4
13558082471
1430072cd4c
151ae05b427
hex1081f6c18

4431244312 has 64 divisors (see below), whose sum is σ = 9426585600. Its totient is φ = 1934352000.

The previous prime is 4431244303. The next prime is 4431244319. The reversal of 4431244312 is 2134421344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431244319) by changing a digit.

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, 482887 + ... + 491977.

It is an arithmetic number, because the mean of its divisors is an integer number (147290400).

Almost surely, 24431244312 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 4431244312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4713292800).

4431244312 is an abundant number, since it is smaller than the sum of its proper divisors (4995341288).

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

4431244312 is a wasteful number, since it uses less digits than its factorization.

4431244312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9328 (or 9324 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 4431244312 is about 66567.5920549932. The cubic root of 4431244312 is about 1642.5120524666.

Adding to 4431244312 its reverse (2134421344), we get a palindrome (6565665656).

The spelling of 4431244312 in words is "four billion, four hundred thirty-one million, two hundred forty-four thousand, three hundred twelve".

Divisors: 1 2 4 8 11 22 29 44 58 88 116 191 232 319 382 638 764 1276 1528 2101 2552 4202 5539 8404 9091 11078 16808 18182 22156 36364 44312 60929 72728 100001 121858 200002 243716 263639 400004 487432 527278 800008 1054556 1736381 2109112 2900029 3472762 5800058 6945524 11600116 13891048 19100191 23200232 38200382 50355049 76400764 100710098 152801528 201420196 402840392 553905539 1107811078 2215622156 4431244312