[go: up one dir, main page]

Search a number
-
+
7401223 = 16274549
BaseRepresentation
bin11100001110111100000111
3111221000120101
4130032330013
53343314343
6422344531
7116623624
oct34167407
914830511
107401223
1141a5715
12258b147
1316c1a2b
14da934b
159b2e4d
hex70ef07

7401223 has 4 divisors (see below), whose sum is σ = 7407400. Its totient is φ = 7395048.

The previous prime is 7401211. The next prime is 7401227. The reversal of 7401223 is 3221047.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3221047 = 13923173.

It is a cyclic number.

It is not a de Polignac number, because 7401223 - 29 = 7400711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7401223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7401227) 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 3 ways as a sum of consecutive naturals, for example, 648 + ... + 3901.

It is an arithmetic number, because the mean of its divisors is an integer number (1851850).

Almost surely, 27401223 is an apocalyptic number.

7401223 is a deficient number, since it is larger than the sum of its proper divisors (6177).

7401223 is a wasteful number, since it uses less digits than its factorization.

7401223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 7401223 is about 2720.5188843307. The cubic root of 7401223 is about 194.8802508253.

The spelling of 7401223 in words is "seven million, four hundred one thousand, two hundred twenty-three".

Divisors: 1 1627 4549 7401223