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73223405 = 529504989
BaseRepresentation
bin1000101110101…
…00110011101101
312002210010121222
410113110303231
5122221122110
611133233125
71546250213
oct427246355
9162703558
1073223405
1138372912
12206327a5
1312229a78
149a20cb3
156665c55
hex45d4ced

73223405 has 8 divisors (see below), whose sum is σ = 90898200. Its totient is φ = 56558656.

The previous prime is 73223383. The next prime is 73223413. The reversal of 73223405 is 50432237.

It can be written as a sum of positive squares in 4 ways, for example, as 1156 + 73222249 = 34^2 + 8557^2 .

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 73223405 - 28 = 73223149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252350 + ... + 252639.

It is an arithmetic number, because the mean of its divisors is an integer number (11362275).

Almost surely, 273223405 is an apocalyptic number.

It is an amenable number.

73223405 is a deficient number, since it is larger than the sum of its proper divisors (17674795).

73223405 is a wasteful number, since it uses less digits than its factorization.

73223405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505023.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 73223405 is about 8557.0675467709. The cubic root of 73223405 is about 418.3598257677.

The spelling of 73223405 in words is "seventy-three million, two hundred twenty-three thousand, four hundred five".

Divisors: 1 5 29 145 504989 2524945 14644681 73223405