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73048453 = 238930577
BaseRepresentation
bin1000101101010…
…10000110000101
312002110020122021
410112222012011
5122200022303
611125403141
71544621152
oct426520605
9162406567
1073048453
1138263425
12205694b1
131219824a
1499b7229
15662debd
hex45aa185

73048453 has 4 divisors (see below), whose sum is σ = 73081420. Its totient is φ = 73015488.

The previous prime is 73048447. The next prime is 73048463. The reversal of 73048453 is 35484037.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35484037 = 88140277.

It can be written as a sum of positive squares in 2 ways, for example, as 20948929 + 52099524 = 4577^2 + 7218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-73048453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73048433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12900 + ... + 17677.

It is an arithmetic number, because the mean of its divisors is an integer number (18270355).

Almost surely, 273048453 is an apocalyptic number.

It is an amenable number.

73048453 is a deficient number, since it is larger than the sum of its proper divisors (32967).

73048453 is a wasteful number, since it uses less digits than its factorization.

73048453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32966.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 73048453 is about 8546.8387723181. The cubic root of 73048453 is about 418.0263656362.

The spelling of 73048453 in words is "seventy-three million, forty-eight thousand, four hundred fifty-three".

Divisors: 1 2389 30577 73048453