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468989392469 = 131372621100469
BaseRepresentation
bin1101101001100011111…
…00100011011001010101
31122211112200021121221212
412310301330203121111
530140442241024334
6555241210151205
745611665030013
oct6646174433125
91584480247855
10468989392469
11170996316034
1276a87722505
13352c15a3570
14189b08a98b3
15c2ed42eece
hex6d31f23655

468989392469 has 16 divisors (see below), whose sum is σ = 508951280880. Its totient is φ = 429585093120.

The previous prime is 468989392463. The next prime is 468989392483. The reversal of 468989392469 is 964293989864.

It can be written as a sum of positive squares in 8 ways, for example, as 30778491844 + 438210900625 = 175438^2 + 661975^2 .

It is a cyclic number.

It is not a de Polignac number, because 468989392469 - 28 = 468989392213 is a prime.

It is a super-2 number, since 2×4689893924692 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 468989392469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (468989392463) 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, 4617767 + ... + 4718235.

It is an arithmetic number, because the mean of its divisors is an integer number (31809455055).

Almost surely, 2468989392469 is an apocalyptic number.

It is an amenable number.

468989392469 is a deficient number, since it is larger than the sum of its proper divisors (39961888411).

468989392469 is a wasteful number, since it uses less digits than its factorization.

468989392469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103240.

The product of its digits is 1451188224, while the sum is 77.

The spelling of 468989392469 in words is "four hundred sixty-eight billion, nine hundred eighty-nine million, three hundred ninety-two thousand, four hundred sixty-nine".

Divisors: 1 13 137 1781 2621 34073 100469 359077 1306097 4668001 13764253 178935289 263329249 3423280237 36076107113 468989392469