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38304057 = 3111961091
BaseRepresentation
bin1001001000011…
…1100100111001
32200002001021210
42102013210321
534301212212
63444553333
7643402431
oct222074471
980061253
1038304057
111a692450
12109b2849
137c2192c
1451312c1
15356953c
hex2487939

38304057 has 16 divisors (see below), whose sum is σ = 58648320. Its totient is φ = 21992400.

The previous prime is 38304047. The next prime is 38304059. The reversal of 38304057 is 75040383.

It is not a de Polignac number, because 38304057 - 28 = 38303801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38304059) 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, 29919 + ... + 31172.

It is an arithmetic number, because the mean of its divisors is an integer number (3665520).

Almost surely, 238304057 is an apocalyptic number.

It is an amenable number.

38304057 is a deficient number, since it is larger than the sum of its proper divisors (20344263).

38304057 is a wasteful number, since it uses less digits than its factorization.

38304057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61124.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 38304057 is about 6189.0271448750. The cubic root of 38304057 is about 337.0918544942.

It can be divided in two parts, 3830 and 4057, that added together give a palindrome (7887).

The spelling of 38304057 in words is "thirty-eight million, three hundred four thousand, fifty-seven".

Divisors: 1 3 11 19 33 57 209 627 61091 183273 672001 1160729 2016003 3482187 12768019 38304057