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30801266160 = 2435718334087
BaseRepresentation
bin11100101011111001…
…100000010111110000
32221111121000102220120
4130223321200113300
51001040111004120
622052214010240
72140166304540
oct345371402760
987447012816
1030801266160
111207656a175
125b77346980
132b9b39c3a2
1416c2a23320
15c04151140
hex72be605f0

30801266160 has 80 divisors (see below), whose sum is σ = 109124491776. Its totient is φ = 7040289024.

The previous prime is 30801266159. The next prime is 30801266189. The reversal of 30801266160 is 6166210803.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-4 number, since 4×308012661604 (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9165364 + ... + 9168723.

Almost surely, 230801266160 is an apocalyptic number.

30801266160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30801266160 is an abundant number, since it is smaller than the sum of its proper divisors (78323225616).

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

30801266160 is a wasteful number, since it uses less digits than its factorization.

30801266160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18334110 (or 18334104 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

Adding to 30801266160 its reverse (6166210803), we get a palindrome (36967476963).

The spelling of 30801266160 in words is "thirty billion, eight hundred one million, two hundred sixty-six thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 18334087 36668174 55002261 73336348 91670435 110004522 128338609 146672696 183340870 220009044 256677218 275011305 293345392 366681740 385015827 440018088 513354436 550022610 641693045 733363480 770031654 880036176 1026708872 1100045220 1283386090 1466726960 1540063308 1925079135 2053417744 2200090440 2566772180 3080126616 3850158270 4400180880 5133544360 6160253232 7700316540 10267088720 15400633080 30801266160