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10120049 = 172692213
BaseRepresentation
bin100110100110…
…101101110001
3201001011002122
4212212231301
510042320144
61000524025
7152006342
oct46465561
921034078
1010120049
115792385
123480615
1321343c4
1414b60c9
15d4d7ee
hex9a6b71

10120049 has 8 divisors (see below), whose sum is σ = 10760040. Its totient is φ = 9485056.

The previous prime is 10120039. The next prime is 10120057. The reversal of 10120049 is 94002101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3489424 + 6630625 = 1868^2 + 2575^2 .

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 10120049 - 212 = 10115953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10120039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3467 + ... + 5679.

It is an arithmetic number, because the mean of its divisors is an integer number (1345005).

Almost surely, 210120049 is an apocalyptic number.

It is an amenable number.

10120049 is a deficient number, since it is larger than the sum of its proper divisors (639991).

10120049 is a wasteful number, since it uses less digits than its factorization.

10120049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 10120049 is about 3181.2024456171. The cubic root of 10120049 is about 216.3021676853.

The spelling of 10120049 in words is "ten million, one hundred twenty thousand, forty-nine".

Divisors: 1 17 269 2213 4573 37621 595297 10120049