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30027331908 = 22337223923741
BaseRepresentation
bin11011111101110001…
…001011100101000100
32212111122201111201000
4123331301023211010
5442443444110113
621443325533300
72112051052500
oct337561134504
985448644630
1030027331908
1111809711992
1259a0114230
132aa6c44822
14164bd21300
15bab227373
hex6fdc4b944

30027331908 has 144 divisors (see below), whose sum is σ = 90941356800. Its totient is φ = 8542981440.

The previous prime is 30027331883. The next prime is 30027331921. The reversal of 30027331908 is 80913372003.

It is a happy number.

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

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 47 ways as a sum of consecutive naturals, for example, 1252918 + ... + 1276658.

It is an arithmetic number, because the mean of its divisors is an integer number (631537200).

Almost surely, 230027331908 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 30027331908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45470678400).

30027331908 is an abundant number, since it is smaller than the sum of its proper divisors (60914024892).

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

30027331908 is a wasteful number, since it uses less digits than its factorization.

30027331908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24007 (or 23992 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 30027331908 in words is "thirty billion, twenty-seven million, three hundred thirty-one thousand, nine hundred eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 84 98 108 126 147 189 196 239 252 294 378 441 478 588 717 756 882 956 1323 1434 1673 1764 2151 2646 2868 3346 4302 5019 5292 6453 6692 8604 10038 11711 12906 15057 20076 23422 23741 25812 30114 35133 45171 46844 47482 60228 70266 71223 90342 94964 105399 140532 142446 166187 180684 210798 213669 284892 316197 332374 421596 427338 498561 632394 641007 664748 854676 997122 1163309 1264788 1282014 1495683 1994244 2326618 2564028 2991366 3489927 4487049 4653236 5674099 5982732 6979854 8974098 10469781 11348198 13959708 17022297 17948196 20939562 22696396 31409343 34044594 39718693 41879124 51066891 62818686 68089188 79437386 102133782 119156079 125637372 153200673 158874772 204267564 238312158 278030851 306401346 357468237 476624316 556061702 612802692 714936474 834092553 1072404711 1112123404 1429872948 1668185106 2144809422 2502277659 3336370212 4289618844 5004555318 7506832977 10009110636 15013665954 30027331908