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57202 = 237773
BaseRepresentation
bin1101111101110010
32220110121
431331302
53312302
61120454
7325525
oct157562
986417
1057202
1139a82
122912a
1320062
1416bbc
1511e37
hexdf72

57202 has 8 divisors (see below), whose sum is σ = 88236. Its totient is φ = 27792.

The previous prime is 57193. The next prime is 57203. The reversal of 57202 is 20275.

Adding to 57202 its reverse (20275), we get a palindrome (77477).

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57121 + 81 = 239^2 + 9^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (57203) by changing a digit.

57202 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313 + ... + 460.

257202 is an apocalyptic number.

57202 is a deficient number, since it is larger than the sum of its proper divisors (31034).

57202 is a wasteful number, since it uses less digits than its factorization.

57202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812.

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 57202 is about 239.1693960355. The cubic root of 57202 is about 38.5304195410.

The spelling of 57202 in words is "fifty-seven thousand, two hundred two".

Divisors: 1 2 37 74 773 1546 28601 57202