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30525252550 = 25213208122567
BaseRepresentation
bin11100011011011100…
…100110001111000110
32220210100122111102021
4130123130212033012
51000003431040200
622004554033354
72130305236252
oct343334461706
986710574367
1030525252550
1111a44789051
125abaa1885a
132b5614c320
1416980d5262
15bd9cce41a
hex71b7263c6

30525252550 has 48 divisors (see below), whose sum is σ = 61176521952. Its totient is φ = 11264947200.

The previous prime is 30525252521. The next prime is 30525252557. The reversal of 30525252550 is 5525252503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30525252557) 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 23 ways as a sum of consecutive naturals, for example, 1341367 + ... + 1363933.

It is an arithmetic number, because the mean of its divisors is an integer number (1274510874).

Almost surely, 230525252550 is an apocalyptic number.

30525252550 is an abundant number, since it is smaller than the sum of its proper divisors (30651269402).

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

30525252550 is a wasteful number, since it uses less digits than its factorization.

30525252550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24673 (or 24668 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 34.

The spelling of 30525252550 in words is "thirty billion, five hundred twenty-five million, two hundred fifty-two thousand, five hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 2081 4162 10405 20810 22567 27053 45134 52025 54106 104050 112835 135265 225670 270530 293371 564175 586742 676325 1128350 1352650 1466855 2933710 7334275 14668550 46961927 93923854 234809635 469619270 610505051 1174048175 1221010102 2348096350 3052525255 6105050510 15262626275 30525252550