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30520182486 = 23198311292857
BaseRepresentation
bin11100011011001001…
…010000011011010110
32220210000002220121010
4130123021100123112
51000001131314421
622004253233050
72130214161603
oct343311203326
986700086533
1030520182486
1111a41935912
125ab9192786
132b550956a1
1416975756aa
15bd962c076
hex71b2506d6

30520182486 has 64 divisors (see below), whose sum is σ = 65107526400. Its totient is φ = 9510068736.

The previous prime is 30520182479. The next prime is 30520182491. The reversal of 30520182486 is 68428102503.

It is a super-2 number, since 2×305201824862 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10681170 + ... + 10684026.

It is an arithmetic number, because the mean of its divisors is an integer number (1017305100).

Almost surely, 230520182486 is an apocalyptic number.

30520182486 is an abundant number, since it is smaller than the sum of its proper divisors (34587343914).

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

30520182486 is a wasteful number, since it uses less digits than its factorization.

30520182486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093.

The product of its (nonzero) digits is 92160, while the sum is 39.

Adding to 30520182486 its reverse (68428102503), we get a palindrome (98948284989).

The spelling of 30520182486 in words is "thirty billion, five hundred twenty million, one hundred eighty-two thousand, four hundred eighty-six".

Divisors: 1 2 3 6 19 38 57 83 114 166 249 498 1129 1577 2258 2857 3154 3387 4731 5714 6774 8571 9462 17142 21451 42902 54283 64353 93707 108566 128706 162849 187414 237131 281121 325698 474262 562242 711393 1422786 1780433 3225553 3560866 4505489 5341299 6451106 9010978 9676659 10682598 13516467 19353318 27032934 61285507 122571014 183856521 267720899 367713042 535441798 803162697 1606325394 5086697081 10173394162 15260091243 30520182486