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57120703 = 373915277
BaseRepresentation
bin1101100111100…
…1011110111111
310222111000212121
43121321132333
5104110330303
65400143411
71262342443
oct331713677
9128430777
1057120703
112a2746a2
1217167b67
13baac543
14782c823
1550349bd
hex36797bf

57120703 has 4 divisors (see below), whose sum is σ = 57139720. Its totient is φ = 57101688.

The previous prime is 57120671. The next prime is 57120737. The reversal of 57120703 is 30702175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57120703 - 25 = 57120671 is a prime.

It is a super-2 number, since 2×571207032 = 6525549422428418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57120743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900 + ... + 11377.

It is an arithmetic number, because the mean of its divisors is an integer number (14284930).

Almost surely, 257120703 is an apocalyptic number.

57120703 is a deficient number, since it is larger than the sum of its proper divisors (19017).

57120703 is a wasteful number, since it uses less digits than its factorization.

57120703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19016.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 57120703 is about 7557.8239593153. The cubic root of 57120703 is about 385.1215740193.

Adding to 57120703 its reverse (30702175), we get a palindrome (87822878).

The spelling of 57120703 in words is "fifty-seven million, one hundred twenty thousand, seven hundred three".

Divisors: 1 3739 15277 57120703