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11915741144 = 231818229103
BaseRepresentation
bin10110001100011101…
…11100011111011000
31010202102120100221002
423012032330133120
5143400412204034
65250215404132
7601166062046
oct130616743730
933672510832
1011915741144
11506514175a
122386683648
13117b872b08
14810767396
1549b179e7e
hex2c63bc7d8

11915741144 has 16 divisors (see below), whose sum is σ = 22465453920. Its totient is φ = 5924953440.

The previous prime is 11915741119. The next prime is 11915741171. The reversal of 11915741144 is 44114751911.

It is a happy number.

It is a super-3 number, since 3×119157411443 (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11915741098 and 11915741107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4113104 + ... + 4115999.

It is an arithmetic number, because the mean of its divisors is an integer number (1404090870).

Almost surely, 211915741144 is an apocalyptic number.

It is an amenable number.

11915741144 is a deficient number, since it is larger than the sum of its proper divisors (10549712776).

11915741144 is a wasteful number, since it uses less digits than its factorization.

11915741144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8229290 (or 8229286 counting only the distinct ones).

The product of its digits is 20160, while the sum is 38.

The spelling of 11915741144 in words is "eleven billion, nine hundred fifteen million, seven hundred forty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 181 362 724 1448 8229103 16458206 32916412 65832824 1489467643 2978935286 5957870572 11915741144