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57430517 = 232496979
BaseRepresentation
bin1101101100010…
…1000111110101
311000001202212012
43123011013311
5104200234032
65410534005
71265102624
oct333050765
9130052765
1057430517
112a466441
1217297305
13bb8a571
1478ad6bb
1550966b2
hex36c51f5

57430517 has 4 divisors (see below), whose sum is σ = 59927520. Its totient is φ = 54933516.

The previous prime is 57430511. The next prime is 57430523. The reversal of 57430517 is 71503475.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (57430511) and next prime (57430523).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57430517 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 (57430511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248467 + ... + 1248512.

It is an arithmetic number, because the mean of its divisors is an integer number (14981880).

Almost surely, 257430517 is an apocalyptic number.

It is an amenable number.

57430517 is a deficient number, since it is larger than the sum of its proper divisors (2497003).

57430517 is a wasteful number, since it uses less digits than its factorization.

57430517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497002.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 57430517 is about 7578.2924857780. The cubic root of 57430517 is about 385.8165992283.

The spelling of 57430517 in words is "fifty-seven million, four hundred thirty thousand, five hundred seventeen".

Divisors: 1 23 2496979 57430517