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57448038 = 239574673
BaseRepresentation
bin1101101100100…
…1011001100110
311000002122220010
43123021121212
5104201314123
65411151050
71265204664
oct333113146
9130078803
1057448038
112a47861a
12172a5486
13bb9552b
1478b5c34
15509b993
hex36c9666

57448038 has 8 divisors (see below), whose sum is σ = 114896088. Its totient is φ = 19149344.

The previous prime is 57448037. The next prime is 57448057. The reversal of 57448038 is 83084475.

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

57448038 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57447987 and 57448005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57448033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4787331 + ... + 4787342.

It is an arithmetic number, because the mean of its divisors is an integer number (14362011).

Almost surely, 257448038 is an apocalyptic number.

57448038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57448038 is a wasteful number, since it uses less digits than its factorization.

57448038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9574678.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 57448038 is about 7579.4483968162. The cubic root of 57448038 is about 385.8558304342.

The spelling of 57448038 in words is "fifty-seven million, four hundred forty-eight thousand, thirty-eight".

Divisors: 1 2 3 6 9574673 19149346 28724019 57448038