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69085055064144 = 2437205610282929
BaseRepresentation
bin11111011010101000111100…
…01010101001100001010000
3100001121110121021022021200110
433231110132022221201100
533023342143044023034
6402533123002121320
720360142032011650
oct1755243612514120
9301543537267613
1069085055064144
11200158975a3879
1278b91911b0240
132c71900c40cb2
14130ba3d6b0360
157ec0da42ede9
hex3ed51e2a9850

69085055064144 has 40 divisors (see below), whose sum is σ = 203965400666560. Its totient is φ = 19738587161088.

The previous prime is 69085055064139. The next prime is 69085055064203. The reversal of 69085055064144 is 44146055058096.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102805141129 + ... + 102805141800.

It is an arithmetic number, because the mean of its divisors is an integer number (5099135016664).

Almost surely, 269085055064144 is an apocalyptic number.

It is an amenable number.

69085055064144 is an abundant number, since it is smaller than the sum of its proper divisors (134880345602416).

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

69085055064144 is a wasteful number, since it uses less digits than its factorization.

69085055064144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205610282947 (or 205610282941 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 57.

The spelling of 69085055064144 in words is "sixty-nine trillion, eighty-five billion, fifty-five million, sixty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 205610282929 411220565858 616830848787 822441131716 1233661697574 1439271980503 1644882263432 2467323395148 2878543961006 3289764526864 4317815941509 4934646790296 5757087922012 8635631883018 9869293580592 11514175844024 17271263766036 23028351688048 34542527532072 69085055064144