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30666483072 = 273226620211
BaseRepresentation
bin11100100011110111…
…010110010110000000
32221011012101202021100
4130203313112112000
51000301104424242
622031001054400
72133641543121
oct344367262600
987135352240
1030666483072
1112007480695
125b3a187400
132b7949a794
1416acb7a048
15be73ca54c
hex723dd6580

30666483072 has 48 divisors (see below), whose sum is σ = 88246002780. Its totient is φ = 10222160640.

The previous prime is 30666483019. The next prime is 30666483077. The reversal of 30666483072 is 27038466603.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×306664830723 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30666483077) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 13308954 + ... + 13311257.

Almost surely, 230666483072 is an apocalyptic number.

30666483072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30666483072 is an abundant number, since it is smaller than the sum of its proper divisors (57579519708).

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

30666483072 is a wasteful number, since it uses less digits than its factorization.

30666483072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26620231 (or 26620216 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 30666483072 in words is "thirty billion, six hundred sixty-six million, four hundred eighty-three thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 384 576 1152 26620211 53240422 79860633 106480844 159721266 212961688 239581899 319442532 425923376 479163798 638885064 851846752 958327596 1277770128 1703693504 1916655192 2555540256 3407387008 3833310384 5111080512 7666620768 10222161024 15333241536 30666483072