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57820073 = 307331569
BaseRepresentation
bin1101110010010…
…0001110101001
311000210120020012
43130210032221
5104300220243
65423141305
71301314433
oct334441651
9130716205
1057820073
112a702093
1217444835
13bc9597c
147971653
155121d18
hex37243a9

57820073 has 8 divisors (see below), whose sum is σ = 58285920. Its totient is φ = 57356640.

The previous prime is 57820069. The next prime is 57820121. The reversal of 57820073 is 37002875.

57820073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57820073 - 22 = 57820069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57820033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101333 + ... + 101901.

It is an arithmetic number, because the mean of its divisors is an integer number (7285740).

Almost surely, 257820073 is an apocalyptic number.

It is an amenable number.

57820073 is a deficient number, since it is larger than the sum of its proper divisors (465847).

57820073 is a wasteful number, since it uses less digits than its factorization.

57820073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 57820073 is about 7603.9511439777. The cubic root of 57820073 is about 386.6869763246.

The spelling of 57820073 in words is "fifty-seven million, eight hundred twenty thousand, seventy-three".

Divisors: 1 307 331 569 101617 174683 188339 57820073