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2112152566625 = 53172934274281
BaseRepresentation
bin11110101111000110000…
…110100111101101100001
321110220211112200112121222
4132233012012213231201
5234101142024113000
64254150503424425
7305412052406663
oct36570606475541
97426745615558
102112152566625
11744839073082
122a1423755115
131242379c582a
147432b8c4533
1539e1e072a85
hex1ebc61a7b61

2112152566625 has 32 divisors (see below), whose sum is σ = 2887265515680. Its totient is φ = 1535487744000.

The previous prime is 2112152566597. The next prime is 2112152566639. The reversal of 2112152566625 is 5266652512112.

It can be written as a sum of positive squares in 16 ways, for example, as 886446729169 + 1225705837456 = 941513^2 + 1107116^2 .

It is not a de Polignac number, because 2112152566625 - 212 = 2112152562529 is a prime.

It is a super-2 number, since 2×21121525666252 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17075516 + ... + 17198765.

It is an arithmetic number, because the mean of its divisors is an integer number (90227047365).

Almost surely, 22112152566625 is an apocalyptic number.

2112152566625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2112152566625 is a deficient number, since it is larger than the sum of its proper divisors (775112949055).

2112152566625 is a wasteful number, since it uses less digits than its factorization.

2112152566625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34274342 (or 34274332 counting only the distinct ones).

The product of its digits is 432000, while the sum is 44.

The spelling of 2112152566625 in words is "two trillion, one hundred twelve billion, one hundred fifty-two million, five hundred sixty-six thousand, six hundred twenty-five".

Divisors: 1 5 17 25 29 85 125 145 425 493 725 2125 2465 3625 12325 61625 34274281 171371405 582662777 856857025 993954149 2913313885 4284285125 4969770745 14566569425 16897220533 24848853725 72832847125 84486102665 124244268625 422430513325 2112152566625