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69444443785 = 5139705714159
BaseRepresentation
bin100000010101100110…
…1100001111010001001
320122020200222021000111
41000223031201322021
52114210234200120
651522523234321
75005620014143
oct1005315417211
9218220867014
1069444443785
11274a663a502
12115609789a1
136719310172
14350ad1bc93
151c1697175a
hex102b361e89

69444443785 has 16 divisors (see below), whose sum is σ = 83950675200. Its totient is φ = 55144164096.

The previous prime is 69444443773. The next prime is 69444443807. The reversal of 69444443785 is 58734444496.

It is a cyclic number.

It is not a de Polignac number, because 69444443785 - 25 = 69444443753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4897536 + ... + 4911694.

It is an arithmetic number, because the mean of its divisors is an integer number (5246917200).

Almost surely, 269444443785 is an apocalyptic number.

It is an amenable number.

69444443785 is a deficient number, since it is larger than the sum of its proper divisors (14506231415).

69444443785 is a wasteful number, since it uses less digits than its factorization.

69444443785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21360.

The product of its digits is 46448640, while the sum is 58.

The spelling of 69444443785 in words is "sixty-nine billion, four hundred forty-four million, four hundred forty-three thousand, seven hundred eighty-five".

Divisors: 1 5 139 695 7057 14159 35285 70795 980923 1968101 4904615 9840505 99920063 499600315 13888888757 69444443785