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6888708883225 = 5213214922712
BaseRepresentation
bin110010000111110011100…
…0010111100001100011001
3220101112221222002110202101
41210033213002330030121
51400331033433230400
622352343522403401
71310456425245001
oct144174702741431
926345858073671
106888708883225
112216537638084
129330b2800561
133ac7aa7b3c00
1419b5b57a5001
15be2d00bd56a
hex643e70bc319

6888708883225 has 81 divisors (see below), whose sum is σ = 9346603698999. Its totient is φ = 5034259900800.

The previous prime is 6888708883187. The next prime is 6888708883261. The reversal of 6888708883225 is 5223888078886.

The square root of 6888708883225 is 2624635.

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

It can be written as a sum of positive squares in 13 ways, for example, as 6660182817289 + 228526065936 = 2580733^2 + 478044^2 .

It is not a de Polignac number, because 6888708883225 - 213 = 6888708875033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 25419589840 + ... + 25419590110.

Almost surely, 26888708883225 is an apocalyptic number.

6888708883225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6888708883225 is the 2624635-th square number.

6888708883225 is the 1312318-th centered octagonal number.

It is an amenable number.

6888708883225 is a deficient number, since it is larger than the sum of its proper divisors (2457894815774).

6888708883225 is an equidigital number, since it uses as much as digits as its factorization.

6888708883225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 660602880, while the sum is 73.

The spelling of 6888708883225 in words is "six trillion, eight hundred eighty-eight billion, seven hundred eight million, eight hundred eighty-three thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 149 169 271 325 745 845 1355 1937 3523 3725 4225 6775 9685 17615 22201 25181 40379 45799 48425 73441 88075 111005 125905 201895 228995 288613 367205 524927 555025 629525 954733 1009475 1144975 1443065 1836025 2624635 3751969 4773665 6016471 6824051 7215325 10942709 12411529 13123175 18759845 23868325 30082355 34120255 54713545 62057645 78214123 93799225 142255217 150411775 170601275 273567725 310288225 391070615 711276085 1016783599 1630463641 1849317821 1955353075 3556380425 5083917995 8152318205 9246589105 21196027333 25419589975 40761591025 46232945525 105980136665 275548355329 529900683325 1377741776645 6888708883225