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30033020320 = 255199879283
BaseRepresentation
bin11011111110000110…
…111000010110100000
32212112001102111201221
4123332012320112200
5443001423122240
621444051504424
72112150314002
oct337606702640
985461374657
1030033020320
1111811947756
1259a1bb8114
132aa8186a54
14164c9a2372
15bab99ca4a
hex6fe1b85a0

30033020320 has 48 divisors (see below), whose sum is σ = 74687387040. Its totient is φ = 11380932864.

The previous prime is 30033020261. The next prime is 30033020321. The reversal of 30033020320 is 2302033003.

It is a happy number.

It is a super-3 number, since 3×300330203203 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30033020294 and 30033020303.

It is not an unprimeable number, because it can be changed into a prime (30033020321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4936602 + ... + 4942681.

It is an arithmetic number, because the mean of its divisors is an integer number (1555987230).

Almost surely, 230033020320 is an apocalyptic number.

It is an amenable number.

30033020320 is an abundant number, since it is smaller than the sum of its proper divisors (44654366720).

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

30033020320 is a wasteful number, since it uses less digits than its factorization.

30033020320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9879317 (or 9879309 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 16.

Adding to 30033020320 its reverse (2302033003), we get a palindrome (32335053323).

The spelling of 30033020320 in words is "thirty billion, thirty-three million, twenty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 608 760 1520 3040 9879283 19758566 39517132 49396415 79034264 98792830 158068528 187706377 197585660 316137056 375412754 395171320 750825508 790342640 938531885 1501651016 1580685280 1877063770 3003302032 3754127540 6006604064 7508255080 15016510160 30033020320