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97687488920201 = 569171682757329
BaseRepresentation
bin10110001101100010100100…
…000100110111101010001001
3110210212211111001201221112122
4112031202210010313222021
5100301002434130421301
6543433002440421025
726401455020243315
oct2615424404675211
9423784431657478
1097687488920201
1129143038873724
12ab585a6477775
134267b76a8719b
141a1a1577a4b45
15b46120aab81b
hex58d8a4137a89

97687488920201 has 4 divisors (see below), whose sum is σ = 97859171678100. Its totient is φ = 97515806162304.

The previous prime is 97687488920179. The next prime is 97687488920209. The reversal of 97687488920201 is 10202988478679.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24971807952400 + 72715680967801 = 4997180^2 + 8527349^2 .

It is a cyclic number.

It is not a de Polignac number, because 97687488920201 - 234 = 97670309051017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97687488920209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85841378096 + ... + 85841379233.

It is an arithmetic number, because the mean of its divisors is an integer number (24464792919525).

Almost surely, 297687488920201 is an apocalyptic number.

It is an amenable number.

97687488920201 is a deficient number, since it is larger than the sum of its proper divisors (171682757899).

97687488920201 is a wasteful number, since it uses less digits than its factorization.

97687488920201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171682757898.

The product of its (nonzero) digits is 195084288, while the sum is 71.

The spelling of 97687488920201 in words is "ninety-seven trillion, six hundred eighty-seven billion, four hundred eighty-eight million, nine hundred twenty thousand, two hundred one".

Divisors: 1 569 171682757329 97687488920201