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38674905 = 3513811867
BaseRepresentation
bin1001001110001…
…0000111011001
32200202212222220
42103202013121
534400044110
63500534253
7646505553
oct223420731
980685886
1038674905
111a916035
1210b51389
138021679
1451ca4d3
1535de370
hex24e21d9

38674905 has 16 divisors (see below), whose sum is σ = 61957824. Its totient is φ = 20600640.

The previous prime is 38674903. The next prime is 38674921. The reversal of 38674905 is 50947683.

It is a happy number.

It is not a de Polignac number, because 38674905 - 21 = 38674903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38674903) 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, 19782 + ... + 21648.

It is an arithmetic number, because the mean of its divisors is an integer number (3872364).

Almost surely, 238674905 is an apocalyptic number.

It is an amenable number.

38674905 is a deficient number, since it is larger than the sum of its proper divisors (23282919).

38674905 is a wasteful number, since it uses less digits than its factorization.

38674905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 38674905 is about 6218.9150983110. The cubic root of 38674905 is about 338.1762353699.

The spelling of 38674905 in words is "thirty-eight million, six hundred seventy-four thousand, nine hundred five".

Divisors: 1 3 5 15 1381 1867 4143 5601 6905 9335 20715 28005 2578327 7734981 12891635 38674905