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73041217 = 619971201
BaseRepresentation
bin1000101101010…
…00010101000001
312002102212201021
410112220111001
5122144304332
611125305441
71544561104
oct426502501
9162385637
1073041217
1138258a47
1220565281
1312194b72
1499b473b
15662bc97
hex45a8541

73041217 has 8 divisors (see below), whose sum is σ = 74374952. Its totient is φ = 71712000.

The previous prime is 73041211. The next prime is 73041257. The reversal of 73041217 is 71214037.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 467856 + 72573361 = 684^2 + 8519^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-73041217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73041191 and 73041200.

It is not an unprimeable number, because it can be changed into a prime (73041211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60217 + ... + 61417.

It is an arithmetic number, because the mean of its divisors is an integer number (9296869).

Almost surely, 273041217 is an apocalyptic number.

It is an amenable number.

73041217 is a deficient number, since it is larger than the sum of its proper divisors (1333735).

73041217 is a wasteful number, since it uses less digits than its factorization.

73041217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 73041217 is about 8546.4154474259. The cubic root of 73041217 is about 418.0125622927.

The spelling of 73041217 in words is "seventy-three million, forty-one thousand, two hundred seventeen".

Divisors: 1 61 997 1201 60817 73261 1197397 73041217