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57332223 = 3213490019
BaseRepresentation
bin1101101010110…
…1000111111111
310222212210000200
43122231013333
5104134112343
65404454543
71264213224
oct332550777
9128783020
1057332223
112a3a9603
121724a453
13bb548c0
14788594b
1550774d3
hex36ad1ff

57332223 has 12 divisors (see below), whose sum is σ = 89183640. Its totient is φ = 35281296.

The previous prime is 57332221. The next prime is 57332243. The reversal of 57332223 is 32223375.

It is not a de Polignac number, because 57332223 - 21 = 57332221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57332221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244893 + ... + 245126.

It is an arithmetic number, because the mean of its divisors is an integer number (7431970).

Almost surely, 257332223 is an apocalyptic number.

57332223 is a deficient number, since it is larger than the sum of its proper divisors (31851417).

57332223 is a wasteful number, since it uses less digits than its factorization.

57332223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490038 (or 490035 counting only the distinct ones).

The product of its digits is 7560, while the sum is 27.

The square root of 57332223 is about 7571.8044744962. The cubic root of 57332223 is about 385.5963614228.

Adding to 57332223 its reverse (32223375), we get a palindrome (89555598).

The spelling of 57332223 in words is "fifty-seven million, three hundred thirty-two thousand, two hundred twenty-three".

Divisors: 1 3 9 13 39 117 490019 1470057 4410171 6370247 19110741 57332223