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11423030040 = 233252331191233
BaseRepresentation
bin10101010001101110…
…11001101100011000
31002111002110001100200
422220313121230120
5141343243430130
65125255102200
7553034103402
oct125067315430
932432401320
1011423030040
1149320035a4
122269671960
131100770596
147a514bb72
1546cca1760
hex2a8dd9b18

11423030040 has 384 divisors, whose sum is σ = 40370503680. Its totient is φ = 2792908800.

The previous prime is 11423029987. The next prime is 11423030041. The reversal of 11423030040 is 4003032411.

11423030040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11423029995 and 11423030022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11423030041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49025764 + ... + 49025996.

It is an arithmetic number, because the mean of its divisors is an integer number (105131520).

Almost surely, 211423030040 is an apocalyptic number.

11423030040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11423030040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20185251840).

11423030040 is an abundant number, since it is smaller than the sum of its proper divisors (28947473640).

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

11423030040 is a wasteful number, since it uses less digits than its factorization.

11423030040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 11423030040 its reverse (4003032411), we get a palindrome (15426062451).

The spelling of 11423030040 in words is "eleven billion, four hundred twenty-three million, thirty thousand, forty".