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12888296250 = 235410931531
BaseRepresentation
bin11000000000011001…
…11100101100111010
31020021012121021201120
430000030330230322
5202343400440000
65530520530110
7634245465504
oct140014745472
936235537646
1012888296250
11551411a805
1225b8320936
1312a51c0ccb
148a39acd74
155067396a0
hex30033cb3a

12888296250 has 80 divisors (see below), whose sum is σ = 32506969440. Its totient is φ = 3405240000.

The previous prime is 12888296231. The next prime is 12888296273. The reversal of 12888296250 is 5269288821.

It is a super-2 number, since 2×128882962502 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12888296193 and 12888296202.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 392985 + ... + 424515.

It is an arithmetic number, because the mean of its divisors is an integer number (406337118).

Almost surely, 212888296250 is an apocalyptic number.

12888296250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12888296250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16253484720).

12888296250 is an abundant number, since it is smaller than the sum of its proper divisors (19618673190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12888296250 is a wasteful number, since it uses less digits than its factorization.

12888296250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31665 (or 31650 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 12888296250 in words is "twelve billion, eight hundred eighty-eight million, two hundred ninety-six thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 109 125 150 218 250 327 375 545 625 654 750 1090 1250 1635 1875 2725 3270 3750 5450 8175 13625 16350 27250 31531 40875 63062 68125 81750 94593 136250 157655 189186 204375 315310 408750 472965 788275 945930 1576550 2364825 3436879 3941375 4729650 6873758 7882750 10310637 11824125 17184395 19706875 20621274 23648250 34368790 39413750 51553185 59120625 85921975 103106370 118241250 171843950 257765925 429609875 515531850 859219750 1288829625 2148049375 2577659250 4296098750 6444148125 12888296250