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117205079875 = 531375795279
BaseRepresentation
bin110110100100111110…
…1111001011101000011
3102012112020000221212021
41231021331321131003
53410014000024000
6125502051342311
711316310512142
oct1551175713503
9365466027767
10117205079875
1145785237284
121a86b8b1997
13b08b148390
14595c085759
1530ae92111a
hex1b49f79743

117205079875 has 32 divisors (see below), whose sum is σ = 157733372160. Its totient is φ = 86436201600.

The previous prime is 117205079867. The next prime is 117205079881. The reversal of 117205079875 is 578970502711.

It is not a de Polignac number, because 117205079875 - 23 = 117205079867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1182486 + ... + 1277764.

It is an arithmetic number, because the mean of its divisors is an integer number (4929167880).

Almost surely, 2117205079875 is an apocalyptic number.

117205079875 is a deficient number, since it is larger than the sum of its proper divisors (40528292285).

117205079875 is an equidigital number, since it uses as much as digits as its factorization.

117205079875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96064 (or 96054 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 52.

The spelling of 117205079875 in words is "one hundred seventeen billion, two hundred five million, seventy-nine thousand, eight hundred seventy-five".

Divisors: 1 5 13 25 65 125 325 757 1625 3785 9841 18925 49205 94625 95279 246025 476395 1230125 1238627 2381975 6193135 11909875 30965675 72126203 154828375 360631015 937640639 1803155075 4688203195 9015775375 23441015975 117205079875