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72411906217 = 743240571117
BaseRepresentation
bin100001101110000010…
…1100000000010101001
320220220111202222012111
41003130011200002221
52141244421444332
653133210242321
75142302022130
oct1033405400251
9226814688174
1072411906217
11287896a69a2
121204a7263a1
136aa00416b1
14370d094917
151d3c239947
hex10dc1600a9

72411906217 has 8 divisors (see below), whose sum is σ = 84681033536. Its totient is φ = 60623921232.

The previous prime is 72411906191. The next prime is 72411906223. The reversal of 72411906217 is 71260911427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72411906217 - 215 = 72411873449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72411906217.

It is not an unprimeable number, because it can be changed into a prime (72411906277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120285258 + ... + 120285859.

It is an arithmetic number, because the mean of its divisors is an integer number (10585129192).

Almost surely, 272411906217 is an apocalyptic number.

It is an amenable number.

72411906217 is a deficient number, since it is larger than the sum of its proper divisors (12269127319).

72411906217 is a wasteful number, since it uses less digits than its factorization.

72411906217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240571167.

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 72411906217 in words is "seventy-two billion, four hundred eleven million, nine hundred six thousand, two hundred seventeen".

Divisors: 1 7 43 301 240571117 1683997819 10344558031 72411906217