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38197105 = 57639421
BaseRepresentation
bin1001000110110…
…1011101110001
32122212121120121
42101231131301
534234301410
63442410241
7642445552
oct221553561
978777517
1038197105
111a61a061
1210960981
137bb504b
145104329
1535479da
hex246d771

38197105 has 4 divisors (see below), whose sum is σ = 45836532. Its totient is φ = 30557680.

The previous prime is 38197099. The next prime is 38197121. The reversal of 38197105 is 50179183.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11478544 + 26718561 = 3388^2 + 5169^2 .

It is not a de Polignac number, because 38197105 - 25 = 38197073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3819706 + ... + 3819715.

It is an arithmetic number, because the mean of its divisors is an integer number (11459133).

Almost surely, 238197105 is an apocalyptic number.

It is an amenable number.

38197105 is a deficient number, since it is larger than the sum of its proper divisors (7639427).

38197105 is an equidigital number, since it uses as much as digits as its factorization.

38197105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639426.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 38197105 is about 6180.3806517075. The cubic root of 38197105 is about 336.7778211323. Note that the first 3 decimals are identical.

The spelling of 38197105 in words is "thirty-eight million, one hundred ninety-seven thousand, one hundred five".

Divisors: 1 5 7639421 38197105