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57527140 = 225112311369
BaseRepresentation
bin1101101101110…
…0101101100100
311000020200101211
43123130231210
5104211332030
65413001204
71265654416
oct333345544
9130220354
1057527140
112a521aa0
1217323204
13bbc2538
1478d69b6
1550b512a
hex36dcb64

57527140 has 48 divisors (see below), whose sum is σ = 137531520. Its totient is φ = 20007680.

The previous prime is 57527069. The next prime is 57527143. The reversal of 57527140 is 4172575.

It is not an unprimeable number, because it can be changed into a prime (57527143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625 + ... + 10744.

It is an arithmetic number, because the mean of its divisors is an integer number (2865240).

Almost surely, 257527140 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 57527140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68765760).

57527140 is an abundant number, since it is smaller than the sum of its proper divisors (80004380).

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

57527140 is a wasteful number, since it uses less digits than its factorization.

57527140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11412 (or 11410 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 57527140 is about 7584.6647915383. The cubic root of 57527140 is about 386.0328481983.

The spelling of 57527140 in words is "fifty-seven million, five hundred twenty-seven thousand, one hundred forty".