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188668245750337 = 1716576697726073
BaseRepresentation
bin101010111001011110111111…
…110001001011001001000001
3220202000111201102211100000001
4222321132333301023021001
5144212120031403002322
61505132555013000001
754511555003410253
oct5271367761131101
9822014642740001
10188668245750337
115512a832178401
12191b1205923001
1381374543b20b2
14348383dd37cd3
1516c2a625ce827
hexab97bfc4b241

188668245750337 has 8 divisors (see below), whose sum is σ = 199886936952456. Its totient is φ = 177462950003712.

The previous prime is 188668245750317. The next prime is 188668245750379. The reversal of 188668245750337 is 733057542866881.

It is a Cunningham number, because it is equal to 137356562+1.

It can be written as a sum of positive squares in 4 ways, for example, as 2257037494336 + 186411208256001 = 1502344^2 + 13653249^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-188668245750337 is a prime.

It is a super-2 number, since 2×1886682457503372 (a number of 29 digits) contains 22 as substring.

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 188668245750337.

It is not an unprimeable number, because it can be changed into a prime (188668245750317) 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, 3348834868 + ... + 3348891205.

It is an arithmetic number, because the mean of its divisors is an integer number (24985867119057).

Almost surely, 2188668245750337 is an apocalyptic number.

188668245750337 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

188668245750337 is a deficient number, since it is larger than the sum of its proper divisors (11218691202119).

188668245750337 is a wasteful number, since it uses less digits than its factorization.

188668245750337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6697727747.

The product of its (nonzero) digits is 1625702400, while the sum is 73.

The spelling of 188668245750337 in words is "one hundred eighty-eight trillion, six hundred sixty-eight billion, two hundred forty-five million, seven hundred fifty thousand, three hundred thirty-seven".

Divisors: 1 17 1657 28169 6697726073 113861343241 11098132102961 188668245750337