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57505214 = 2138924851
BaseRepresentation
bin1101101101011…
…1010110111110
311000012120022202
43123113112332
5104210131324
65412311502
71265533454
oct333272676
9130176282
1057505214
112a507578
1217312592
13bbb5570
1478cc9d4
1550ad8ae
hex36d75be

57505214 has 16 divisors (see below), whose sum is σ = 93940560. Its totient is φ = 26241600.

The previous prime is 57505207. The next prime is 57505223. The reversal of 57505214 is 41250575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10112 + ... + 14739.

It is an arithmetic number, because the mean of its divisors is an integer number (5871285).

Almost surely, 257505214 is an apocalyptic number.

57505214 is a deficient number, since it is larger than the sum of its proper divisors (36435346).

57505214 is a wasteful number, since it uses less digits than its factorization.

57505214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24955.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 57505214 is about 7583.2192372369. The cubic root of 57505214 is about 385.9837975427.

Adding to 57505214 its reverse (41250575), we get a palindrome (98755789).

The spelling of 57505214 in words is "fifty-seven million, five hundred five thousand, two hundred fourteen".

Divisors: 1 2 13 26 89 178 1157 2314 24851 49702 323063 646126 2211739 4423478 28752607 57505214