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12152452668 = 223192989107193
BaseRepresentation
bin10110101000101011…
…11011011000111100
31011100220222120002120
423110111323120330
5144342011441133
65325513122540
7610102100106
oct132425733074
934326876076
1012152452668
115176819614
1224319b9450
1311b8911bc5
14833d84576
154b1d36ab3
hex2d457b63c

12152452668 has 192 divisors, whose sum is σ = 31679424000. Its totient is φ = 3610607616.

The previous prime is 12152452589. The next prime is 12152452717. The reversal of 12152452668 is 86625425121.

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 63 ways as a sum of consecutive naturals, for example, 62965980 + ... + 62966172.

It is an arithmetic number, because the mean of its divisors is an integer number (164997000).

Almost surely, 212152452668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12152452668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15839712000).

12152452668 is an abundant number, since it is smaller than the sum of its proper divisors (19526971332).

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

12152452668 is a wasteful number, since it uses less digits than its factorization.

12152452668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 442 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

Adding to 12152452668 its reverse (86625425121), we get a palindrome (98777877789).

The spelling of 12152452668 in words is "twelve billion, one hundred fifty-two million, four hundred fifty-two thousand, six hundred sixty-eight".