Search a number
-
+
40401305 = 571154323
BaseRepresentation
bin1001101000011…
…1100110011001
32211000121011122
42122013212121
540320320210
64001535025
71000256030
oct232074631
984017148
1040401305
112089510a
1211644475
1384a73c9
145519717
153830b55
hex2687999

40401305 has 8 divisors (see below), whose sum is σ = 55407552. Its totient is φ = 27703728.

The previous prime is 40401301. The next prime is 40401349. The reversal of 40401305 is 50310404.

40401305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40401305 - 22 = 40401301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40401301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577127 + ... + 577196.

It is an arithmetic number, because the mean of its divisors is an integer number (6925944).

Almost surely, 240401305 is an apocalyptic number.

It is an amenable number.

40401305 is a deficient number, since it is larger than the sum of its proper divisors (15006247).

40401305 is a wasteful number, since it uses less digits than its factorization.

40401305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154335.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40401305 is about 6356.2020892983. The cubic root of 40401305 is about 343.1350888924.

Adding to 40401305 its reverse (50310404), we get a palindrome (90711709).

Subtracting 40401305 from its reverse (50310404), we obtain a palindrome (9909099).

The spelling of 40401305 in words is "forty million, four hundred one thousand, three hundred five".

Divisors: 1 5 7 35 1154323 5771615 8080261 40401305