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12302288545 = 537181367397
BaseRepresentation
bin10110111010100011…
…00000011010100001
31011202100221000021111
423131101200122201
5200143341213140
65352424423321
7613601504311
oct133521403241
934670830244
1012302288545
115243359518
122474017b41
1312109841a1
14849c29441
154c00827ea
hex2dd4606a1

12302288545 has 16 divisors (see below), whose sum is σ = 15245547408. Its totient is φ = 9522904320.

The previous prime is 12302288543. The next prime is 12302288623. The reversal of 12302288545 is 54588220321.

It can be written as a sum of positive squares in 8 ways, for example, as 1516012096 + 10786276449 = 38936^2 + 103857^2 .

It is not a de Polignac number, because 12302288545 - 21 = 12302288543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12302288498 and 12302288507.

It is not an unprimeable number, because it can be changed into a prime (12302288543) 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, 150214 + ... + 217183.

It is an arithmetic number, because the mean of its divisors is an integer number (952846713).

Almost surely, 212302288545 is an apocalyptic number.

It is an amenable number.

12302288545 is a deficient number, since it is larger than the sum of its proper divisors (2943258863).

12302288545 is a wasteful number, since it uses less digits than its factorization.

12302288545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367620.

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 12302288545 in words is "twelve billion, three hundred two million, two hundred eighty-eight thousand, five hundred forty-five".

Divisors: 1 5 37 181 185 905 6697 33485 367397 1836985 13593689 66498857 67968445 332494285 2460457709 12302288545