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39080649 = 313026883
BaseRepresentation
bin1001010100010…
…1001011001001
32201112111120110
42111011023021
540001040044
63513344533
7653115516
oct225051311
981474513
1039080649
1120072963
1211108149
13813425a
14529430d
15366e6b9
hex25452c9

39080649 has 4 divisors (see below), whose sum is σ = 52107536. Its totient is φ = 26053764.

The previous prime is 39080647. The next prime is 39080653. The reversal of 39080649 is 94608093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 39080649 - 21 = 39080647 is a prime.

It is a super-2 number, since 2×390806492 = 3054594252522402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39080647) 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 3 ways as a sum of consecutive naturals, for example, 6513439 + ... + 6513444.

It is an arithmetic number, because the mean of its divisors is an integer number (13026884).

Almost surely, 239080649 is an apocalyptic number.

It is an amenable number.

39080649 is a deficient number, since it is larger than the sum of its proper divisors (13026887).

39080649 is a wasteful number, since it uses less digits than its factorization.

39080649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13026886.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 39080649 is about 6251.4517513934. The cubic root of 39080649 is about 339.3547421679.

The spelling of 39080649 in words is "thirty-nine million, eighty thousand, six hundred forty-nine".

Divisors: 1 3 13026883 39080649