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908970049 = 1325378521
BaseRepresentation
bin110110001011011…
…100100001000001
32100100101110111101
4312023130201001
53330144020144
6230110214401
731345055311
oct6613344101
92310343441
10908970049
114270a9719
122144b4401
13116417500
1488a13441
1554bee6d4
hex362dc841

908970049 has 6 divisors (see below), whose sum is σ = 984269526. Its totient is φ = 839049120.

The previous prime is 908970037. The next prime is 908970121. The reversal of 908970049 is 940079809.

It can be written as a sum of positive squares in 3 ways, for example, as 7049025 + 901921024 = 2655^2 + 30032^2 .

It is not a de Polignac number, because 908970049 - 211 = 908968001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 908969990 and 908970008.

It is not an unprimeable number, because it can be changed into a prime (908970149) 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 5 ways as a sum of consecutive naturals, for example, 2689092 + ... + 2689429.

It is an arithmetic number, because the mean of its divisors is an integer number (164044921).

Almost surely, 2908970049 is an apocalyptic number.

It is an amenable number.

908970049 is a deficient number, since it is larger than the sum of its proper divisors (75299477).

908970049 is a wasteful number, since it uses less digits than its factorization.

908970049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5378547 (or 5378534 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 908970049 is about 30149.1301532897. The cubic root of 908970049 is about 968.6863746545.

The spelling of 908970049 in words is "nine hundred eight million, nine hundred seventy thousand, forty-nine".

Divisors: 1 13 169 5378521 69920773 908970049