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6434145 = 325142981
BaseRepresentation
bin11000100010110101100001
3110002212222200
4120202311201
53121343040
6345523413
7105455304
oct30426541
913085880
106434145
1136a5083
1221a3569
1314437b3
14bd6b3b
15871630
hex622d61

6434145 has 12 divisors (see below), whose sum is σ = 11152596. Its totient is φ = 3431520.

The previous prime is 6434137. The next prime is 6434167. The reversal of 6434145 is 5414346.

6434145 is a `hidden beast` number, since 643 + 4 + 14 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3651921 + 2782224 = 1911^2 + 1668^2 .

It is not a de Polignac number, because 6434145 - 23 = 6434137 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71446 + ... + 71535.

It is an arithmetic number, because the mean of its divisors is an integer number (929383).

Almost surely, 26434145 is an apocalyptic number.

It is an amenable number.

6434145 is a deficient number, since it is larger than the sum of its proper divisors (4718451).

6434145 is a wasteful number, since it uses less digits than its factorization.

6434145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142992 (or 142989 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 6434145 is about 2536.5616491621. The cubic root of 6434145 is about 185.9931492447.

The spelling of 6434145 in words is "six million, four hundred thirty-four thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 45 142981 428943 714905 1286829 2144715 6434145