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68759852841 = 32874072
BaseRepresentation
bin100000000001001101…
…0000001011100101001
320120110222210102210100
41000002122001130221
52111310010242331
651330550140013
74652635051161
oct1000232013451
9216428712710
1068759852841
1127185165169
12113ab651609
13663a537674
1434840355a1
151bc67e4ae6
hex1002681729

68759852841 has 9 divisors (see below), whose sum is σ = 99320923741. Its totient is φ = 45839377452.

The previous prime is 68759852807. The next prime is 68759852851. The reversal of 68759852841 is 14825895786.

It can be divided in two parts, 68759 and 852841, that added together give a square (921600 = 9602).

The square root of 68759852841 is 262221.

It is a perfect power (a square), and thus also a powerful number.

68759852841 is a `hidden beast` number, since 68 + 7 + 5 + 9 + 8 + 528 + 41 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 68759852841 - 219 = 68759328553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68759852851) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 742960 + ... + 830366.

Almost surely, 268759852841 is an apocalyptic number.

68759852841 is the 262221-st square number.

68759852841 is the 131111-st centered octagonal number.

It is an amenable number.

68759852841 is a deficient number, since it is larger than the sum of its proper divisors (30561070900).

68759852841 is an frugal number, since it uses more digits than its factorization.

68759852841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174820 (or 87410 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 63.

The spelling of 68759852841 in words is "sixty-eight billion, seven hundred fifty-nine million, eight hundred fifty-two thousand, eight hundred forty-one".

Divisors: 1 3 9 87407 262221 786663 7639983649 22919950947 68759852841