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68051504080409 = 418369832863741
BaseRepresentation
bin11110111100100011110011…
…01110100010011000011001
322220221122211022210021220012
433132101321232202120121
532404423440021033114
6400422232425411305
720222362465421543
oct1736217156423031
9286848738707805
1068051504080409
111a757531a55253
127770a07039b35
132bc82c9a02975
1412b39d338c693
157d029846163e
hex3de479ba2619

68051504080409 has 16 divisors (see below), whose sum is σ = 70561319923584. Its totient is φ = 65582395190400.

The previous prime is 68051504080387. The next prime is 68051504080411. The reversal of 68051504080409 is 90408040515086.

It is not a de Polignac number, because 68051504080409 - 224 = 68051487303193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68051504080429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22331279 + ... + 25195019.

It is an arithmetic number, because the mean of its divisors is an integer number (4410082495224).

Almost surely, 268051504080409 is an apocalyptic number.

It is an amenable number.

68051504080409 is a deficient number, since it is larger than the sum of its proper divisors (2509815843175).

68051504080409 is a wasteful number, since it uses less digits than its factorization.

68051504080409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870848.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 68051504080409 in words is "sixty-eight trillion, fifty-one billion, five hundred four million, eighty thousand, four hundred nine".

Divisors: 1 41 83 3403 6983 286303 579589 2863741 23763149 117413381 237690503 9745310623 19997503403 819897639523 1659792782449 68051504080409