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30032120331 = 331636823931
BaseRepresentation
bin11011111110000011…
…011100101000001011
32212111222201210012000
4123332003130220023
5443001210322311
621444020322043
72112136545063
oct337603345013
985458653160
1030032120331
1111811392564
1259a1843323
132aa7c30205
14164c80a3a3
15bab871056
hex6fe0dca0b

30032120331 has 16 divisors (see below), whose sum is σ = 44764993920. Its totient is φ = 19898579880.

The previous prime is 30032120311. The next prime is 30032120341. The reversal of 30032120331 is 13302123003.

30032120331 is a `hidden beast` number, since 300 + 32 + 1 + 2 + 0 + 331 = 666.

It is not a de Polignac number, because 30032120331 - 210 = 30032119307 is a prime.

It is a super-2 number, since 2×300321203312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30032120311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3407565 + ... + 3416366.

It is an arithmetic number, because the mean of its divisors is an integer number (2797812120).

Almost surely, 230032120331 is an apocalyptic number.

30032120331 is a deficient number, since it is larger than the sum of its proper divisors (14732873589).

30032120331 is a wasteful number, since it uses less digits than its factorization.

30032120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824103 (or 6824097 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30032120331 its reverse (13302123003), we get a palindrome (43334243334).

The spelling of 30032120331 in words is "thirty billion, thirty-two million, one hundred twenty thousand, three hundred thirty-one".

Divisors: 1 3 9 27 163 489 1467 4401 6823931 20471793 61415379 184246137 1112300753 3336902259 10010706777 30032120331