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30033000320 = 27597607797
BaseRepresentation
bin11011111110000110…
…110011011110000000
32212112001101111022012
4123332012303132000
5443001422002240
621444051232052
72112150201461
oct337606633600
985461344265
1030033000320
1111811933724
1259a1ba8628
132aa817a90b
14164c998d68
15bab996b65
hex6fe1b3780

30033000320 has 128 divisors (see below), whose sum is σ = 72748488960. Its totient is φ = 11854872576.

The previous prime is 30033000293. The next prime is 30033000331. The reversal of 30033000320 is 2300033003.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×300330003202 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30033000295 and 30033000304.

It is a congruent number.

It is an unprimeable number.

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, 37682162 + ... + 37682958.

It is an arithmetic number, because the mean of its divisors is an integer number (568347570).

Almost surely, 230033000320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30033000320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36374244480).

30033000320 is an abundant number, since it is smaller than the sum of its proper divisors (42715488640).

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

30033000320 is an equidigital number, since it uses as much as digits as its factorization.

30033000320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 14.

Adding to 30033000320 its reverse (2300033003), we get a palindrome (32333033323).

The spelling of 30033000320 in words is "thirty billion, thirty-three million, three hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 97 128 160 194 320 388 485 607 640 776 797 970 1214 1552 1594 1940 2428 3035 3104 3188 3880 3985 4856 6070 6208 6376 7760 7970 9712 12140 12416 12752 15520 15940 19424 24280 25504 31040 31880 38848 48560 51008 58879 62080 63760 77309 77696 97120 102016 117758 127520 154618 194240 235516 255040 294395 309236 386545 388480 471032 483779 510080 588790 618472 773090 942064 967558 1177580 1236944 1546180 1884128 1935116 2355160 2418895 2473888 3092360 3768256 3870232 4710320 4837790 4947776 6184720 7536512 7740464 9420640 9675580 9895552 12369440 15480928 18841280 19351160 24738880 30961856 37682560 38702320 46926563 49477760 61923712 77404640 93853126 154809280 187706252 234632815 309618560 375412504 469265630 750825008 938531260 1501650016 1877062520 3003300032 3754125040 6006600064 7508250080 15016500160 30033000320