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4622868 = 2232128413
BaseRepresentation
bin10001101000101000010100
322200212101100
4101220220110
52140412433
6243030100
754202515
oct21505024
98625340
104622868
112678258
12166b330
13c5b233
14884a0c
15614b13
hex468a14

4622868 has 18 divisors (see below), whose sum is σ = 11685674. Its totient is φ = 1540944.

The previous prime is 4622867. The next prime is 4622869. The reversal of 4622868 is 8682264.

It is an interprime number because it is at equal distance from previous prime (4622867) and next prime (4622869).

It can be written as a sum of positive squares in only one way, i.e., 4210704 + 412164 = 2052^2 + 642^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 128413 = 4622868 / (4 + 6 + 2 + 2 + 8 + 6 + 8).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4622867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64171 + ... + 64242.

Almost surely, 24622868 is an apocalyptic number.

It is an amenable number.

4622868 is an abundant number, since it is smaller than the sum of its proper divisors (7062806).

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

4622868 is a wasteful number, since it uses less digits than its factorization.

4622868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128423 (or 128418 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 4622868 is about 2150.0855796921. The cubic root of 4622868 is about 166.5854875773.

The spelling of 4622868 in words is "four million, six hundred twenty-two thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 128413 256826 385239 513652 770478 1155717 1540956 2311434 4622868