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30782110052 = 22173124111489
BaseRepresentation
bin11100101010110000…
…011011100101100100
32221110020222012200002
4130222300123211210
51001020210010202
622050251240432
72136544422041
oct345260334544
987406865602
1030782110052
1112066775981
125b70a49118
132b97423105
1416c02781c8
15c0261a302
hex72ac1b964

30782110052 has 72 divisors (see below), whose sum is σ = 60379444440. Its totient is φ = 13675315200.

The previous prime is 30782110049. The next prime is 30782110087. The reversal of 30782110052 is 25001128703.

It can be written as a sum of positive squares in 4 ways, for example, as 386279716 + 30395830336 = 19654^2 + 174344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30782109997 and 30782110024.

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 23 ways as a sum of consecutive naturals, for example, 2673524 + ... + 2685012.

It is an arithmetic number, because the mean of its divisors is an integer number (838603395).

Almost surely, 230782110052 is an apocalyptic number.

It is an amenable number.

30782110052 is a deficient number, since it is larger than the sum of its proper divisors (29597334388).

30782110052 is a wasteful number, since it uses less digits than its factorization.

30782110052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11613 (or 11580 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

Adding to 30782110052 its reverse (25001128703), we get a palindrome (55783238755).

The spelling of 30782110052 in words is "thirty billion, seven hundred eighty-two million, one hundred ten thousand, fifty-two".

Divisors: 1 2 4 17 31 34 41 62 68 82 124 164 527 697 961 1054 1271 1394 1922 2108 2542 2788 3844 5084 11489 16337 21607 22978 32674 39401 43214 45956 65348 78802 86428 157604 195313 356159 390626 471049 669817 712318 781252 942098 1339634 1424636 1884196 2679268 6054703 8007833 11040929 12109406 14602519 16015666 22081858 24218812 29205038 32031332 44163716 58410076 187695793 248242823 375391586 452678089 496485646 750783172 905356178 992971292 1810712356 7695527513 15391055026 30782110052