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3054905 = 57237337
BaseRepresentation
bin1011101001110100111001
312202012112122
423221310321
51240224110
6145251025
734652300
oct13516471
95665478
103054905
1117a7217
121033a75
1382c649
14597437
15405255
hex2e9d39

3054905 has 24 divisors (see below), whose sum is σ = 4392648. Its totient is φ = 2032128.

The previous prime is 3054899. The next prime is 3054913. The reversal of 3054905 is 5094503.

It can be written as a sum of positive squares in 4 ways, for example, as 529984 + 2524921 = 728^2 + 1589^2 .

It is not a de Polignac number, because 3054905 - 26 = 3054841 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8897 + ... + 9233.

It is an arithmetic number, because the mean of its divisors is an integer number (183027).

Almost surely, 23054905 is an apocalyptic number.

3054905 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3054905 is a deficient number, since it is larger than the sum of its proper divisors (1337743).

3054905 is a wasteful number, since it uses less digits than its factorization.

3054905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 3054905 is about 1747.8286529291. The cubic root of 3054905 is about 145.0994957238.

The spelling of 3054905 in words is "three million, fifty-four thousand, nine hundred five".

Divisors: 1 5 7 35 37 49 185 245 259 337 1295 1685 1813 2359 9065 11795 12469 16513 62345 82565 87283 436415 610981 3054905