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3055805 = 5613997
BaseRepresentation
bin1011101010000010111101
312202020202222
423222002331
51240241210
6145255125
734655024
oct13520275
95666688
103055805
1117a7965
1210344a5
1382cb8c
145978bb
15405655
hex2ea0bd

3055805 has 8 divisors (see below), whose sum is σ = 3676632. Its totient is φ = 2438208.

The previous prime is 3055777. The next prime is 3055807. The reversal of 3055805 is 5085503.

It can be written as a sum of positive squares in 4 ways, for example, as 76729 + 2979076 = 277^2 + 1726^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3055805 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3055807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2567 + ... + 3563.

It is an arithmetic number, because the mean of its divisors is an integer number (459579).

Almost surely, 23055805 is an apocalyptic number.

It is an amenable number.

3055805 is a deficient number, since it is larger than the sum of its proper divisors (620827).

3055805 is an equidigital number, since it uses as much as digits as its factorization.

3055805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 3055805 is about 1748.0860962779. The cubic root of 3055805 is about 145.1137434908.

The spelling of 3055805 in words is "three million, fifty-five thousand, eight hundred five".

Divisors: 1 5 613 997 3065 4985 611161 3055805