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68898195 = 3451710007
BaseRepresentation
bin1000001101101…
…00110110010011
311210122101120000
410012310312103
5120114220240
610500421043
71464424242
oct406646623
9153571500
1068898195
1135989263
121b0a7783
1311374182
149216959
1560ae430
hex41b4d93

68898195 has 40 divisors (see below), whose sum is σ = 130784544. Its totient is φ = 34580736.

The previous prime is 68898173. The next prime is 68898209. The reversal of 68898195 is 59189886.

It is not a de Polignac number, because 68898195 - 29 = 68897683 is a prime.

It is a super-2 number, since 2×688981952 = 9493922548516050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1882 + ... + 11888.

Almost surely, 268898195 is an apocalyptic number.

68898195 is a deficient number, since it is larger than the sum of its proper divisors (61886349).

68898195 is a wasteful number, since it uses less digits than its factorization.

68898195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10041 (or 10032 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 68898195 is about 8300.4936600181. The cubic root of 68898195 is about 409.9547739129.

The spelling of 68898195 in words is "sixty-eight million, eight hundred ninety-eight thousand, one hundred ninety-five".

Divisors: 1 3 5 9 15 17 27 45 51 81 85 135 153 255 405 459 765 1377 2295 6885 10007 30021 50035 90063 150105 170119 270189 450315 510357 810567 850595 1350945 1531071 2551785 4052835 4593213 7655355 13779639 22966065 68898195