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58243709 = 233249973
BaseRepresentation
bin1101111000101…
…1101001111101
311001121002100102
43132023221331
5104402244314
65440210445
71305030506
oct336135175
9131532312
1058243709
112a9713a7
1217609a25
13c0b3744
147a41bad
1551a75de
hex378ba7d

58243709 has 4 divisors (see below), whose sum is σ = 58493916. Its totient is φ = 57993504.

The previous prime is 58243697. The next prime is 58243711. The reversal of 58243709 is 90734285.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23551609 + 34692100 = 4853^2 + 5890^2 .

It is a cyclic number.

It is not a de Polignac number, because 58243709 - 212 = 58239613 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 (58243729) 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 3 ways as a sum of consecutive naturals, for example, 124754 + ... + 125219.

It is an arithmetic number, because the mean of its divisors is an integer number (14623479).

Almost surely, 258243709 is an apocalyptic number.

It is an amenable number.

58243709 is a deficient number, since it is larger than the sum of its proper divisors (250207).

58243709 is a wasteful number, since it uses less digits than its factorization.

58243709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250206.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 58243709 is about 7631.7566129955. The cubic root of 58243709 is about 387.6290716752.

The spelling of 58243709 in words is "fifty-eight million, two hundred forty-three thousand, seven hundred nine".

Divisors: 1 233 249973 58243709