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12197450216 = 2371931279151
BaseRepresentation
bin10110101110000011…
…00101000111101000
31011111001122200010102
423113001211013220
5144440021401331
65334201404532
7611156421230
oct132701450750
934431580112
1012197450216
11519a162976
122444a99748
1311c5038383
14839d38cc0
154b5c744cb
hex2d70651e8

12197450216 has 192 divisors, whose sum is σ = 28979712000. Its totient is φ = 4700592000.

The previous prime is 12197450201. The next prime is 12197450233. The reversal of 12197450216 is 61205479121.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 12197450216.

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, 80777741 + ... + 80777891.

It is an arithmetic number, because the mean of its divisors is an integer number (150936000).

Almost surely, 212197450216 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 12197450216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14489856000).

12197450216 is an abundant number, since it is smaller than the sum of its proper divisors (16782261784).

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

12197450216 is a wasteful number, since it uses less digits than its factorization.

12197450216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 12197450216 in words is "twelve billion, one hundred ninety-seven million, four hundred fifty thousand, two hundred sixteen".