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39130049 = 725721751
BaseRepresentation
bin1001010101000…
…1001111000001
32201122000100002
42111101033001
540004130144
63514405345
7653412530
oct225211701
981560302
1039130049
11200a6a92
1211130855
13815089a
1452a8317
15367e14e
hex25513c1

39130049 has 8 divisors (see below), whose sum is σ = 44896128. Its totient is φ = 33408000.

The previous prime is 39130001. The next prime is 39130051. The reversal of 39130049 is 94003193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39130049 - 212 = 39125953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39130079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9077 + ... + 12674.

It is an arithmetic number, because the mean of its divisors is an integer number (5612016).

Almost surely, 239130049 is an apocalyptic number.

It is an amenable number.

39130049 is a deficient number, since it is larger than the sum of its proper divisors (5766079).

39130049 is a wasteful number, since it uses less digits than its factorization.

39130049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22015.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 39130049 is about 6255.4015858296. The cubic root of 39130049 is about 339.4976693887.

The spelling of 39130049 in words is "thirty-nine million, one hundred thirty thousand, forty-nine".

Divisors: 1 7 257 1799 21751 152257 5590007 39130049