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2197694130897 = 31795936901417
BaseRepresentation
bin11111111110110000110…
…001110010101011010001
321210002122002020020201010
4133332300301302223101
5242001334144142042
64401335020201133
7314530623614436
oct37766061625321
97702562206633
102197694130897
11778045052441
122b5b173991a9
1312c31ac34b55
1478524615b8d
153c278cc159c
hex1ffb0c72ad1

2197694130897 has 16 divisors (see below), whose sum is σ = 2951598450240. Its totient is φ = 1454487224832.

The previous prime is 2197694130883. The next prime is 2197694130911. The reversal of 2197694130897 is 7980314967912.

It is an interprime number because it is at equal distance from previous prime (2197694130883) and next prime (2197694130911).

It is not a de Polignac number, because 2197694130897 - 24 = 2197694130881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2197694140897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3132268 + ... + 3769149.

It is an arithmetic number, because the mean of its divisors is an integer number (184474903140).

Almost surely, 22197694130897 is an apocalyptic number.

It is an amenable number.

2197694130897 is a deficient number, since it is larger than the sum of its proper divisors (753904319343).

2197694130897 is a wasteful number, since it uses less digits than its factorization.

2197694130897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6902192.

The product of its (nonzero) digits is 41150592, while the sum is 66.

The spelling of 2197694130897 in words is "two trillion, one hundred ninety-seven billion, six hundred ninety-four million, one hundred thirty thousand, eight hundred ninety-seven".

Divisors: 1 3 179 537 593 1779 106147 318441 6901417 20704251 1235353643 3706060929 4092540281 12277620843 732564710299 2197694130897