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198708401041 = 17292837971787
BaseRepresentation
bin1011100100001111110…
…0011001001110010001
3200222220022220122210221
42321003330121032101
511223423322313131
6231141350353041
720233115353243
oct2710374311621
9628808818727
10198708401041
11772a9791847
123261705b781
1315979866037
14989074a093
15527ed93411
hex2e43f19391

198708401041 has 32 divisors (see below), whose sum is σ = 218817728640. Its totient is φ = 179606332416.

The previous prime is 198708401039. The next prime is 198708401053. The reversal of 198708401041 is 140104807891.

It is a happy number.

198708401041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 198708401041 - 21 = 198708401039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198708402041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111195750 + ... + 111197536.

It is an arithmetic number, because the mean of its divisors is an integer number (6838054020).

Almost surely, 2198708401041 is an apocalyptic number.

It is an amenable number.

198708401041 is a deficient number, since it is larger than the sum of its proper divisors (20109327599).

198708401041 is a wasteful number, since it uses less digits than its factorization.

198708401041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 198708401041 in words is "one hundred ninety-eight billion, seven hundred eight million, four hundred one thousand, forty-one".

Divisors: 1 17 29 283 493 797 1787 4811 8207 13549 23113 30379 51823 139519 225551 392921 505721 880991 1424239 3834367 6540979 8597257 14665909 24212063 41302931 111196643 249320453 403059637 702149827 6852013829 11688729473 198708401041