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250305031225 = 52711812832753
BaseRepresentation
bin1110100100011101010…
…1111010110000111001
3212221002012002001022001
43221013111322300321
513100111041444400
6310553305301001
724040535442424
oct3510725726071
9787065061261
10250305031225
1197176734777
1240616794761
131a7b032ba42
14c1871349bb
15679e9bda6a
hex3a4757ac39

250305031225 has 48 divisors (see below), whose sum is σ = 317722414464. Its totient is φ = 195568128000.

The previous prime is 250305031213. The next prime is 250305031271. The reversal of 250305031225 is 522130503052.

It is a de Polignac number, because none of the positive numbers 2k-250305031225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 250305031193 and 250305031202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90919449 + ... + 90922201.

It is an arithmetic number, because the mean of its divisors is an integer number (6619216968).

Almost surely, 2250305031225 is an apocalyptic number.

250305031225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250305031225 is a deficient number, since it is larger than the sum of its proper divisors (67417383239).

250305031225 is a wasteful number, since it uses less digits than its factorization.

250305031225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298 (or 3293 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 250305031225 its reverse (522130503052), we get a palindrome (772435534277).

The spelling of 250305031225 in words is "two hundred fifty billion, three hundred five million, thirty-one thousand, two hundred twenty-five".

Divisors: 1 5 25 71 181 283 355 905 1415 1775 2753 4525 7075 12851 13765 20093 51223 64255 68825 100465 195463 256115 321275 498293 502325 779099 977315 1280575 2491465 3636833 3895495 4886575 12457325 18184165 19477475 35378803 55316029 90920825 141016919 176894015 276580145 705084595 884470075 1382900725 3525422975 10012201249 50061006245 250305031225