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30124250666 = 2197649111779
BaseRepresentation
bin11100000011100010…
…111001011000101010
32212202102002111020122
4130003202321120222
5443143302010131
621501111123242
72114335622456
oct340342713052
985672074218
1030124250666
1111859399434
125a08673522
132ac10499c3
14165ab4d666
15bb49bdd7b
hex7038b962a

30124250666 has 16 divisors (see below), whose sum is σ = 45426601440. Its totient is φ = 14982087120.

The previous prime is 30124250647. The next prime is 30124250677. The reversal of 30124250666 is 66605242103.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2551565 + ... + 2563343.

It is an arithmetic number, because the mean of its divisors is an integer number (2839162590).

Almost surely, 230124250666 is an apocalyptic number.

30124250666 is a deficient number, since it is larger than the sum of its proper divisors (15302350774).

30124250666 is a wasteful number, since it uses less digits than its factorization.

30124250666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18469.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 30124250666 its reverse (66605242103), we get a palindrome (96729492769).

The spelling of 30124250666 in words is "thirty billion, one hundred twenty-four million, two hundred fifty thousand, six hundred sixty-six".

Divisors: 1 2 197 394 6491 11779 12982 23558 1278727 2320463 2557454 4640926 76457489 152914978 15062125333 30124250666