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73725916985 = 572106454771
BaseRepresentation
bin100010010101001101…
…0000011011100111001
321001022002022122002222
41010222122003130321
52201442313320420
653511430133425
75216665645250
oct1045232033471
9231262278088
1073725916985
11292a33a3706
12123567b1275
136c4c343966
1437d57c1797
151db7796225
hex112a683739

73725916985 has 8 divisors (see below), whose sum is σ = 101109829056. Its totient is φ = 50554914480.

The previous prime is 73725916981. The next prime is 73725916991. The reversal of 73725916985 is 58961952737.

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

It is not a de Polignac number, because 73725916985 - 22 = 73725916981 is a prime.

It is a super-2 number, since 2×737259169852 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73725916981) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1053227351 + ... + 1053227420.

It is an arithmetic number, because the mean of its divisors is an integer number (12638728632).

Almost surely, 273725916985 is an apocalyptic number.

It is an amenable number.

73725916985 is a deficient number, since it is larger than the sum of its proper divisors (27383912071).

73725916985 is a wasteful number, since it uses less digits than its factorization.

73725916985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106454783.

The product of its digits is 28576800, while the sum is 62.

The spelling of 73725916985 in words is "seventy-three billion, seven hundred twenty-five million, nine hundred sixteen thousand, nine hundred eighty-five".

Divisors: 1 5 7 35 2106454771 10532273855 14745183397 73725916985