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30124021886 = 2723547171029
BaseRepresentation
bin11100000011100010…
…000001100001111110
32212202101122212102022
4130003202001201332
5443143222200021
621501102200142
72114333650460
oct340342014176
985671585368
1030124021886
1111859252562
125a08583052
132ac0c9982a
14165aad0130
15bb49761ab
hex70388187e

30124021886 has 32 divisors (see below), whose sum is σ = 53985277440. Its totient is φ = 12326330016.

The previous prime is 30124021877. The next prime is 30124021927. The reversal of 30124021886 is 68812042103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90620 + ... + 261648.

It is an arithmetic number, because the mean of its divisors is an integer number (1687039920).

Almost surely, 230124021886 is an apocalyptic number.

30124021886 is a deficient number, since it is larger than the sum of its proper divisors (23861255554).

30124021886 is a wasteful number, since it uses less digits than its factorization.

30124021886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171608.

The product of its (nonzero) digits is 18432, while the sum is 35.

Adding to 30124021886 its reverse (68812042103), we get a palindrome (98936063989).

The spelling of 30124021886 in words is "thirty billion, one hundred twenty-four million, twenty-one thousand, eight hundred eighty-six".

Divisors: 1 2 7 14 23 46 161 322 547 1094 3829 7658 12581 25162 88067 171029 176134 342058 1197203 2394406 3933667 7867334 27535669 55071338 93552863 187105726 654870041 1309740082 2151715849 4303431698 15062010943 30124021886