Search a number
-
+
243310044 = 22320275837
BaseRepresentation
bin11101000000010…
…01110111011100
3121221211102122010
432200021313130
5444241410134
640050551220
76013046505
oct1640116734
9557742563
10243310044
1111538448a
1269598510
133b53c653
1424457bac
1516561ce9
hexe809ddc

243310044 has 12 divisors (see below), whose sum is σ = 567723464. Its totient is φ = 81103344.

The previous prime is 243310027. The next prime is 243310057. The reversal of 243310044 is 440013342.

243310044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2433100442 = 118399555022563872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243310044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10137907 + ... + 10137930.

Almost surely, 2243310044 is an apocalyptic number.

It is an amenable number.

243310044 is an abundant number, since it is smaller than the sum of its proper divisors (324413420).

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

243310044 is a wasteful number, since it uses less digits than its factorization.

243310044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20275844 (or 20275842 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243310044 is about 15598.3987639757. The cubic root of 243310044 is about 624.2904322734.

Adding to 243310044 its reverse (440013342), we get a palindrome (683323386).

The spelling of 243310044 in words is "two hundred forty-three million, three hundred ten thousand, forty-four".

Divisors: 1 2 3 4 6 12 20275837 40551674 60827511 81103348 121655022 243310044