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11948304240 = 24325611631669
BaseRepresentation
bin10110010000010110…
…01010011101110000
31010211200211202002200
423020023022131300
5143432231213430
65253341343200
7602042624145
oct131013123560
933750752080
1011948304240
115081562904
122395567b00
131185534612
14814c023cc
1549de5d460
hex2c82ca770

11948304240 has 240 divisors, whose sum is σ = 41058994080. Its totient is φ = 3112888320.

The previous prime is 11948304209. The next prime is 11948304257. The reversal of 11948304240 is 4240384911.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11948304195 and 11948304204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7158126 + ... + 7159794.

It is an arithmetic number, because the mean of its divisors is an integer number (171079142).

Almost surely, 211948304240 is an apocalyptic number.

11948304240 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 11948304240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20529497040).

11948304240 is an abundant number, since it is smaller than the sum of its proper divisors (29110689840).

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

11948304240 is a wasteful number, since it uses less digits than its factorization.

11948304240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 11948304240 in words is "eleven billion, nine hundred forty-eight million, three hundred four thousand, two hundred forty".