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73099081 = 1123812791
BaseRepresentation
bin1000101101101…
…10011101001001
312002112211002101
410112312131021
5122203132311
611130433401
71545221566
oct426663511
9162484071
1073099081
1138298470
1220592861
13121b52c3
1499cb86d
15663dec1
hex45b6749

73099081 has 8 divisors (see below), whose sum is σ = 79806528. Its totient is φ = 66402000.

The previous prime is 73099079. The next prime is 73099121. The reversal of 73099081 is 18099037.

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

It is a cyclic number.

It is not a de Polignac number, because 73099081 - 21 = 73099079 is a prime.

It is a super-2 number, since 2×730990812 = 10686951286089122, which contains 22 as substring.

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 73099081.

It is not an unprimeable number, because it can be changed into a prime (73099001) 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, 24796 + ... + 27586.

It is an arithmetic number, because the mean of its divisors is an integer number (9975816).

Almost surely, 273099081 is an apocalyptic number.

It is an amenable number.

73099081 is a deficient number, since it is larger than the sum of its proper divisors (6707447).

73099081 is a wasteful number, since it uses less digits than its factorization.

73099081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 73099081 is about 8549.8000561417. The cubic root of 73099081 is about 418.1229177669.

The spelling of 73099081 in words is "seventy-three million, ninety-nine thousand, eighty-one".

Divisors: 1 11 2381 2791 26191 30701 6645371 73099081