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57490524 = 2232721323109
BaseRepresentation
bin1101101101001…
…1110001011100
311000011211011200
43123103301130
5104204144044
65412115500
71265442600
oct333236134
9130154150
1057490524
112a4a7533
1217305b90
13bbab980
1478c7500
1550a9369
hex36d3c5c

57490524 has 216 divisors, whose sum is σ = 191711520. Its totient is φ = 14370048.

The previous prime is 57490469. The next prime is 57490553. The reversal of 57490524 is 42509475.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 527382 + ... + 527490.

Almost surely, 257490524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57490524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95855760).

57490524 is an abundant number, since it is smaller than the sum of its proper divisors (134220996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57490524 is a wasteful number, since it uses less digits than its factorization.

57490524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 57490524 is about 7582.2505893699. The cubic root of 57490524 is about 385.9509275675.

Adding to 57490524 its reverse (42509475), we get a palindrome (99999999).

The spelling of 57490524 in words is "fifty-seven million, four hundred ninety thousand, five hundred twenty-four".