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68857506714 = 23313111190359
BaseRepresentation
bin100000000100000111…
…0100010101110011010
320120201210112202201110
41000020032202232122
52112010010203324
651344355201150
74655232102303
oct1001016425632
9216653482643
1068857506714
11272252a3a47
12114182a61b6
136654839319
143492db57aa
151bd0184329
hex10083a2b9a

68857506714 has 32 divisors (see below), whose sum is σ = 142614650880. Its totient is φ = 22140658800.

The previous prime is 68857506713. The next prime is 68857506733. The reversal of 68857506714 is 41760575886.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68857506713) 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, 537334 + ... + 653025.

It is an arithmetic number, because the mean of its divisors is an integer number (4456707840).

Almost surely, 268857506714 is an apocalyptic number.

68857506714 is an abundant number, since it is smaller than the sum of its proper divisors (73757144166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68857506714 is a wasteful number, since it uses less digits than its factorization.

68857506714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190706.

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 68857506714 in words is "sixty-eight billion, eight hundred fifty-seven million, five hundred six thousand, seven hundred fourteen".

Divisors: 1 2 3 6 31 62 93 186 311 622 933 1866 9641 19282 28923 57846 1190359 2380718 3571077 7142154 36901129 73802258 110703387 221406774 370201649 740403298 1110604947 2221209894 11476251119 22952502238 34428753357 68857506714