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3070405 = 51347237
BaseRepresentation
bin1011101101100111000101
312202222210201
423231213011
51241223110
6145450501
735045422
oct13554705
95688721
103070405
111807928
121040a31
13836710
1459cd49
15409b3a
hex2ed9c5

3070405 has 8 divisors (see below), whose sum is σ = 3967992. Its totient is φ = 2267328.

The previous prime is 3070399. The next prime is 3070427. The reversal of 3070405 is 5040703.

It can be written as a sum of positive squares in 4 ways, for example, as 142884 + 2927521 = 378^2 + 1711^2 .

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 3070405 - 25 = 3070373 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 23554 + ... + 23683.

It is an arithmetic number, because the mean of its divisors is an integer number (495999).

Almost surely, 23070405 is an apocalyptic number.

It is an amenable number.

3070405 is a deficient number, since it is larger than the sum of its proper divisors (897587).

3070405 is a wasteful number, since it uses less digits than its factorization.

3070405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47255.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 3070405 is about 1752.2571158366. The cubic root of 3070405 is about 145.3444841532.

The spelling of 3070405 in words is "three million, seventy thousand, four hundred five".

Divisors: 1 5 13 65 47237 236185 614081 3070405