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211131322297 = 765346189307
BaseRepresentation
bin1100010010100001101…
…0000100111110111001
3202011222002211110001121
43010220122010332321
511424344104303142
6240554204545241
721153013425460
oct3045032047671
9664862743047
10211131322297
11815a4144415
1234b03552221
1316ba950610c
14a30c5b79d7
15575a803c67
hex3128684fb9

211131322297 has 8 divisors (see below), whose sum is σ = 241662459456. Its totient is φ = 180692565072.

The previous prime is 211131322223. The next prime is 211131322313. The reversal of 211131322297 is 792223131112.

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 211131322297 - 211 = 211131320249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211131322697) 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, 23090083 + ... + 23099224.

It is an arithmetic number, because the mean of its divisors is an integer number (30207807432).

Almost surely, 2211131322297 is an apocalyptic number.

It is an amenable number.

211131322297 is a deficient number, since it is larger than the sum of its proper divisors (30531137159).

211131322297 is an equidigital number, since it uses as much as digits as its factorization.

211131322297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46189967.

The product of its digits is 9072, while the sum is 34.

The spelling of 211131322297 in words is "two hundred eleven billion, one hundred thirty-one million, three hundred twenty-two thousand, two hundred ninety-seven".

Divisors: 1 7 653 4571 46189307 323325149 30161617471 211131322297