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4282188729025 = 524138692
BaseRepresentation
bin111110010100000110010…
…101101000101011000001
3120011101002002120102012111
4332110012111220223001
51030124410303312100
613035113233455321
7621243425425654
oct76240625505301
916141062512174
104282188729025
11140107a9a0409
12591b00411541
13250a68835b3c
1410b38ab4189b
15765c9b406ba
hex3e506568ac1

4282188729025 has 9 divisors (see below), whose sum is σ = 5309926853961. Its totient is φ = 3425742705840.

The previous prime is 4282188729023. The next prime is 4282188729041. The reversal of 4282188729025 is 5209278812824.

The square root of 4282188729025 is 2069345.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 539294890689 + 3742893838336 = 734367^2 + 1934656^2 .

It is not a de Polignac number, because 4282188729025 - 21 = 4282188729023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4282188729023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10139791 + ... + 10553659.

Almost surely, 24282188729025 is an apocalyptic number.

4282188729025 is the 2069345-th square number.

4282188729025 is the 1034673-rd centered octagonal number.

It is an amenable number.

4282188729025 is a deficient number, since it is larger than the sum of its proper divisors (1027738124936).

4282188729025 is an frugal number, since it uses more digits than its factorization.

4282188729025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827748 (or 413874 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 58.

The spelling of 4282188729025 in words is "four trillion, two hundred eighty-two billion, one hundred eighty-eight million, seven hundred twenty-nine thousand, twenty-five".

Divisors: 1 5 25 413869 2069345 10346725 171287549161 856437745805 4282188729025