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7405401 = 32468467
BaseRepresentation
bin11100001111111101011001
3111221020022010
4130033331121
53343433101
6422420133
7116642043
oct34177531
914836263
107405401
1141a8873
122591649
1316c38c3
14daaa93
159b42d6
hex70ff59

7405401 has 4 divisors (see below), whose sum is σ = 9873872. Its totient is φ = 4936932.

The previous prime is 7405399. The next prime is 7405429. The reversal of 7405401 is 1045047.

7405401 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 7405401 - 21 = 7405399 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7405451) 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, 1234231 + ... + 1234236.

It is an arithmetic number, because the mean of its divisors is an integer number (2468468).

Almost surely, 27405401 is an apocalyptic number.

It is an amenable number.

7405401 is a deficient number, since it is larger than the sum of its proper divisors (2468471).

7405401 is a wasteful number, since it uses less digits than its factorization.

7405401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468470.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 7405401 is about 2721.2866442181. The cubic root of 7405401 is about 194.9169139790.

The spelling of 7405401 in words is "seven million, four hundred five thousand, four hundred one".

Divisors: 1 3 2468467 7405401