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11999764968 = 2331573184651
BaseRepresentation
bin10110010110011110…
…11110000111101000
31010222021200012221120
423023033132013220
5144033414434333
65302420335240
7603236214342
oct131317360750
933867605846
1011999764968
1150a8611034
1223aa844520
1311930b1859
1481b99a292
154a3725db3
hex2cb3de1e8

11999764968 has 32 divisors (see below), whose sum is σ = 30190500960. Its totient is φ = 3974443200.

The previous prime is 11999764951. The next prime is 11999764979. The reversal of 11999764968 is 86946799911.

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 7 ways as a sum of consecutive naturals, for example, 1588558 + ... + 1596093.

It is an arithmetic number, because the mean of its divisors is an integer number (943453155).

Almost surely, 211999764968 is an apocalyptic number.

It is an amenable number.

11999764968 is an abundant number, since it is smaller than the sum of its proper divisors (18190735992).

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

11999764968 is a wasteful number, since it uses less digits than its factorization.

11999764968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184817 (or 3184813 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 69.

The spelling of 11999764968 in words is "eleven billion, nine hundred ninety-nine million, seven hundred sixty-four thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 157 314 471 628 942 1256 1884 3768 3184651 6369302 9553953 12738604 19107906 25477208 38215812 76431624 499990207 999980414 1499970621 1999960828 2999941242 3999921656 5999882484 11999764968