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11317942818 = 232713471131301
BaseRepresentation
bin10101000101001101…
…00001101000100010
31002012202201001210100
422202212201220202
5141134343132233
65111022443230
7550316632560
oct124246415042
932182631710
1011317942818
114888757a56
12223a433516
1310b4a683b0
147951d4a30
15463944813
hex2a29a1a22

11317942818 has 192 divisors, whose sum is σ = 31120008192. Its totient is φ = 2893363200.

The previous prime is 11317942807. The next prime is 11317942837. The reversal of 11317942818 is 81824971311.

It is a happy number.

It is a super-2 number, since 2×113179428182 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 8698768 + ... + 8700068.

It is an arithmetic number, because the mean of its divisors is an integer number (162083376).

Almost surely, 211317942818 is an apocalyptic number.

11317942818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11317942818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15560004096).

11317942818 is an abundant number, since it is smaller than the sum of its proper divisors (19802065374).

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

11317942818 is a wasteful number, since it uses less digits than its factorization.

11317942818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1486 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The spelling of 11317942818 in words is "eleven billion, three hundred seventeen million, nine hundred forty-two thousand, eight hundred eighteen".