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4538005 = 54321107
BaseRepresentation
bin10001010011111010010101
322112112222021
4101103322111
52130204010
6241133141
753400223
oct21237225
98475867
104538005
11261a51a
12162a1b1
13c2b714
14861b13
155e98da
hex453e95

4538005 has 8 divisors (see below), whose sum is σ = 5572512. Its totient is φ = 3545808.

The previous prime is 4537993. The next prime is 4538033. The reversal of 4538005 is 5008354.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4538005 - 29 = 4537493 is a prime.

It is an Ulam number.

It is a Duffinian number.

4538005 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10339 + ... + 10768.

It is an arithmetic number, because the mean of its divisors is an integer number (696564).

Almost surely, 24538005 is an apocalyptic number.

It is an amenable number.

4538005 is a deficient number, since it is larger than the sum of its proper divisors (1034507).

4538005 is a wasteful number, since it uses less digits than its factorization.

4538005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21155.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 4538005 is about 2130.2593738792. The cubic root of 4538005 is about 165.5598369503.

The spelling of 4538005 in words is "four million, five hundred thirty-eight thousand, five".

Divisors: 1 5 43 215 21107 105535 907601 4538005