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57242163 = 3111734611
BaseRepresentation
bin1101101001011…
…1001000110011
310222201012111010
43122113020303
5104123222123
65402522003
71263356526
oct332271063
9128635433
1057242163
112a347980
1217206303
13bb22904
147860bbd
15505a993
hex3697233

57242163 has 8 divisors (see below), whose sum is σ = 83261376. Its totient is φ = 34692200.

The previous prime is 57242083. The next prime is 57242203. The reversal of 57242163 is 36124275.

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 57242163 - 210 = 57241139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57242163.

It is not an unprimeable number, because it can be changed into a prime (57202163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 867273 + ... + 867338.

It is an arithmetic number, because the mean of its divisors is an integer number (10407672).

Almost surely, 257242163 is an apocalyptic number.

57242163 is a deficient number, since it is larger than the sum of its proper divisors (26019213).

57242163 is a wasteful number, since it uses less digits than its factorization.

57242163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734625.

The product of its digits is 10080, while the sum is 30.

The square root of 57242163 is about 7565.8550739490. The cubic root of 57242163 is about 385.3943516521.

It can be divided in two parts, 5724 and 2163, that added together give a palindrome (7887).

The spelling of 57242163 in words is "fifty-seven million, two hundred forty-two thousand, one hundred sixty-three".

Divisors: 1 3 11 33 1734611 5203833 19080721 57242163