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30306667320 = 2333528061729
BaseRepresentation
bin11100001110011010…
…110000101100111000
32220020010100012212000
4130032122300230320
5444032001323240
621531145021000
72122012264446
oct341632605470
986203305760
1030306667320
11119423617a6
125a59784760
132b1ca88857
141677075b96
15bc5a03430
hex70e6b0b38

30306667320 has 64 divisors (see below), whose sum is σ = 101022228000. Its totient is φ = 8081777664.

The previous prime is 30306667319. The next prime is 30306667327. The reversal of 30306667320 is 2376660303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30306667327) 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 15 ways as a sum of consecutive naturals, for example, 14029785 + ... + 14031944.

Almost surely, 230306667320 is an apocalyptic number.

30306667320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30306667320 is an abundant number, since it is smaller than the sum of its proper divisors (70715560680).

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

30306667320 is a wasteful number, since it uses less digits than its factorization.

30306667320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28061749 (or 28061739 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 36.

The spelling of 30306667320 in words is "thirty billion, three hundred six million, six hundred sixty-seven thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 28061729 56123458 84185187 112246916 140308645 168370374 224493832 252555561 280617290 336740748 420925935 505111122 561234580 673481496 757666683 841851870 1010222244 1122469160 1262777805 1515333366 1683703740 2020444488 2525555610 3030666732 3367407480 3788333415 5051111220 6061333464 7576666830 10102222440 15153333660 30306667320