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4990105 = 56116361
BaseRepresentation
bin10011000010010010011001
3100101112010201
4103002102121
52234140410
6254542201
760262261
oct23022231
910345121
104990105
1128a915a
121807961
131059433
1493c7a1
1568883a
hex4c2499

4990105 has 8 divisors (see below), whose sum is σ = 6086664. Its totient is φ = 3926400.

The previous prime is 4990091. The next prime is 4990121. The reversal of 4990105 is 5010994.

It can be written as a sum of positive squares in 4 ways, for example, as 8281 + 4981824 = 91^2 + 2232^2 .

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

It is not a de Polignac number, because 4990105 - 211 = 4988057 is a prime.

It is a super-2 number, since 2×49901052 = 49802295822050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7876 + ... + 8485.

It is an arithmetic number, because the mean of its divisors is an integer number (760833).

Almost surely, 24990105 is an apocalyptic number.

It is an amenable number.

4990105 is a deficient number, since it is larger than the sum of its proper divisors (1096559).

4990105 is a wasteful number, since it uses less digits than its factorization.

4990105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16427.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 4990105 is about 2233.8542924730. The cubic root of 4990105 is about 170.8847187611.

The spelling of 4990105 in words is "four million, nine hundred ninety thousand, one hundred five".

Divisors: 1 5 61 305 16361 81805 998021 4990105