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30468140472 = 23371137445597
BaseRepresentation
bin11100011000000010…
…101110110110111000
32220122101011220101010
4130120002232312320
5444344320443342
621555153553520
72126012630610
oct343002566670
986571156333
1030468140472
1111a1551a990
125aa38758a0
132b473739b3
1416906a9a40
15bd4c9c29c
hex7180aedb8

30468140472 has 128 divisors (see below), whose sum is σ = 97532490240. Its totient is φ = 7699898880.

The previous prime is 30468140459. The next prime is 30468140491. The reversal of 30468140472 is 27404186403.

It is a self number, because there is not a number n which added to its sum of digits gives 30468140472.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 154423 + ... + 291174.

It is an arithmetic number, because the mean of its divisors is an integer number (761972580).

Almost surely, 230468140472 is an apocalyptic number.

It is an amenable number.

30468140472 is an abundant number, since it is smaller than the sum of its proper divisors (67064349768).

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

30468140472 is a wasteful number, since it uses less digits than its factorization.

30468140472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445661 (or 445657 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 30468140472 in words is "thirty billion, four hundred sixty-eight million, one hundred forty thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 11 12 14 21 22 24 28 33 37 42 44 56 66 74 77 84 88 111 132 148 154 168 222 231 259 264 296 308 407 444 462 518 616 777 814 888 924 1036 1221 1554 1628 1848 2072 2442 2849 3108 3256 4884 5698 6216 8547 9768 11396 17094 22792 34188 68376 445597 891194 1336791 1782388 2673582 3119179 3564776 4901567 5347164 6238358 9357537 9803134 10694328 12476716 14704701 16487089 18715074 19606268 24953432 29409402 32974178 34310969 37430148 39212536 49461267 58818804 65948356 68621938 74860296 98922534 102932907 115409623 117637608 131896712 137243876 181357979 197845068 205865814 230819246 274487752 346228869 362715958 395690136 411731628 461638492 544073937 692457738 725431916 823463256 923276984 1088147874 1269505853 1384915476 1450863832 2176295748 2539011706 2769830952 3808517559 4352591496 5078023412 7617035118 10156046824 15234070236 30468140472