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30550320144 = 2432227393337
BaseRepresentation
bin11100011100111100…
…001110010000010000
32220212002211001200200
4130130330032100100
51000031340221034
622011251215200
72131031302521
oct343474162020
986762731620
1030550320144
1111a5794a773
125b072a7500
132b5b3b8216
14169b57c848
15bdc0d1a99
hex71cf0e410

30550320144 has 60 divisors (see below), whose sum is σ = 85536996636. Its totient is φ = 10178850816.

The previous prime is 30550320121. The next prime is 30550320179. The reversal of 30550320144 is 44102305503.

It can be written as a sum of positive squares in 2 ways, for example, as 20474175744 + 10076144400 = 143088^2 + 100380^2 .

It is a super-3 number, since 3×305503201443 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280644 + ... + 373980.

Almost surely, 230550320144 is an apocalyptic number.

It is an amenable number.

30550320144 is an abundant number, since it is smaller than the sum of its proper divisors (54986676492).

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

30550320144 is a wasteful number, since it uses less digits than its factorization.

30550320144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95624 (or 95615 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 30550320144 its reverse (44102305503), we get a palindrome (74652625647).

The spelling of 30550320144 in words is "thirty billion, five hundred fifty million, three hundred twenty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 2273 4546 6819 9092 13638 18184 20457 27276 36368 40914 54552 81828 93337 109104 163656 186674 280011 327312 373348 560022 746696 840033 1120044 1493392 1680066 2240088 3360132 4480176 6720264 13440528 212155001 424310002 636465003 848620004 1272930006 1697240008 1909395009 2545860012 3394480016 3818790018 5091720024 7637580036 10183440048 15275160072 30550320144