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2097397663 = 31323572843
BaseRepresentation
bin111110100000011…
…1011111110011111
312102011121211200221
41331000323332133
513243413211123
6544042302211
7102655404664
oct17500737637
95364554627
102097397663
11986a209a9
124a64b7967
132756b950a
1415c7ada6b
15c420125d
hex7d03bf9f

2097397663 has 8 divisors (see below), whose sum is σ = 2105731728. Its totient is φ = 2089074624.

The previous prime is 2097397637. The next prime is 2097397691. The reversal of 2097397663 is 3667937902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2097397663 - 213 = 2097389471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2097397663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2097397693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736320 + ... + 739162.

It is an arithmetic number, because the mean of its divisors is an integer number (263216466).

Almost surely, 22097397663 is an apocalyptic number.

2097397663 is a deficient number, since it is larger than the sum of its proper divisors (8334065).

2097397663 is a wasteful number, since it uses less digits than its factorization.

2097397663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513.

The product of its (nonzero) digits is 2571912, while the sum is 52.

The square root of 2097397663 is about 45797.3543231484. The cubic root of 2097397663 is about 1280.0499783138.

The spelling of 2097397663 in words is "two billion, ninety-seven million, three hundred ninety-seven thousand, six hundred sixty-three".

Divisors: 1 313 2357 2843 737741 889859 6700951 2097397663