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57143107 = 735922739
BaseRepresentation
bin1101100111111…
…0111101000011
310222112011121101
43121332331003
5104112034412
65400435231
71262464660
oct331767503
9128464541
1057143107
112a28a50a
1217178b17
13bab97b8
147836a67
15503b457
hex367ef43

57143107 has 8 divisors (see below), whose sum is σ = 65491200. Its totient is φ = 48841224.

The previous prime is 57143101. The next prime is 57143113. The reversal of 57143107 is 70134175.

It is an interprime number because it is at equal distance from previous prime (57143101) and next prime (57143113).

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 57143107 - 27 = 57142979 is a prime.

It is a super-2 number, since 2×571431072 = 6530669355226898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57143101) 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 7 ways as a sum of consecutive naturals, for example, 8857 + ... + 13882.

It is an arithmetic number, because the mean of its divisors is an integer number (8186400).

Almost surely, 257143107 is an apocalyptic number.

57143107 is a deficient number, since it is larger than the sum of its proper divisors (8348093).

57143107 is a wasteful number, since it uses less digits than its factorization.

57143107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23105.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 57143107 is about 7559.3059866631. The cubic root of 57143107 is about 385.1719184973.

The spelling of 57143107 in words is "fifty-seven million, one hundred forty-three thousand, one hundred seven".

Divisors: 1 7 359 2513 22739 159173 8163301 57143107