Search a number
3212864 = 26172953
BaseRepresentation
bin1100010000011001000000
320001020012222
430100121000
51310302424
6152510212
736210644
oct14203100
96036188
103212864
1118a4966
1210ab368
13886505
145d8c24
15436e5e
hex310640

3212864 has 28 divisors (see below), whose sum is σ = 6752844. Its totient is φ = 1511424.

The previous prime is 3212863. The next prime is 3212927. The reversal of 3212864 is 4682123.

3212864 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2560000 + 652864 = 1600^2 + 808^2 .

It is not an unprimeable number, because it can be changed into a prime (3212861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389 + ... + 2564.

It is an arithmetic number, because the mean of its divisors is an integer number (241173).

Almost surely, 23212864 is an apocalyptic number.

3212864 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3212864 is an abundant number, since it is smaller than the sum of its proper divisors (3539980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3212864 is a wasteful number, since it uses less digits than its factorization.

3212864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982 (or 2972 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 3212864 is about 1792.4463729774. The cubic root of 3212864 is about 147.5584600214.

Adding to 3212864 its reverse (4682123), we get a palindrome (7894987).

The spelling of 3212864 in words is "three million, two hundred twelve thousand, eight hundred sixty-four".