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4540417 = 7648631
BaseRepresentation
bin10001010100100000000001
322112200021121
4101110200001
52130243132
6241152241
753410240
oct21244001
98480247
104540417
112621312
12162b681
13c2c84b
14862957
155ea497
hex454801

4540417 has 4 divisors (see below), whose sum is σ = 5189056. Its totient is φ = 3891780.

The previous prime is 4540397. The next prime is 4540423. The reversal of 4540417 is 7140454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7140454 = 23570227.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4540417 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4540391 and 4540400.

It is not an unprimeable number, because it can be changed into a prime (4540427) 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, 324309 + ... + 324322.

It is an arithmetic number, because the mean of its divisors is an integer number (1297264).

Almost surely, 24540417 is an apocalyptic number.

It is an amenable number.

4540417 is a deficient number, since it is larger than the sum of its proper divisors (648639).

4540417 is an equidigital number, since it uses as much as digits as its factorization.

4540417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648638.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 4540417 is about 2130.8254269179. The cubic root of 4540417 is about 165.5891640517.

The spelling of 4540417 in words is "four million, five hundred forty thousand, four hundred seventeen".

Divisors: 1 7 648631 4540417