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38930 = 2517229
BaseRepresentation
bin1001100000010010
31222101212
421200102
52221210
6500122
7221333
oct114022
958355
1038930
1127281
121a642
1314948
141028a
15b805
hex9812

38930 has 16 divisors (see below), whose sum is σ = 74520. Its totient is φ = 14592.

The previous prime is 38923. The next prime is 38933. The reversal of 38930 is 3983.

38930 = T59 + T60 + ... + T75.

It can be written as a sum of positive squares in 4 ways, for example, as 38809 + 121 = 197^2 + 11^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38896 and 38905.

It is not an unprimeable number, because it can be changed into a prime (38933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56 + ... + 284.

238930 is an apocalyptic number.

38930 is a deficient number, since it is larger than the sum of its proper divisors (35590).

38930 is a wasteful number, since it uses less digits than its factorization.

38930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 38930 is about 197.3068675946. The cubic root of 38930 is about 33.8918129799.

The spelling of 38930 in words is "thirty-eight thousand, nine hundred thirty".