Search a number
-
+
7421704453 = 14949810097
BaseRepresentation
bin1101110100101111…
…00011100100000101
3201011020020122112201
412322113203210011
5110144424020303
63224240514501
7351626306212
oct67227434405
921136218481
107421704453
1131693a4449
12153161ba31
139137a66c7
14505970b09
152d686881d
hex1ba5e3905

7421704453 has 4 divisors (see below), whose sum is σ = 7471514700. Its totient is φ = 7371894208.

The previous prime is 7421704441. The next prime is 7421704483. The reversal of 7421704453 is 3544071247.

7421704453 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 an emirpimes, since its reverse is a distinct semiprime: 3544071247 = 3899110723.

It can be written as a sum of positive squares in 2 ways, for example, as 2083648609 + 5338055844 = 45647^2 + 73062^2 .

It is a cyclic number.

It is not a de Polignac number, because 7421704453 - 217 = 7421573381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421704483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24904900 + ... + 24905197.

It is an arithmetic number, because the mean of its divisors is an integer number (1867878675).

Almost surely, 27421704453 is an apocalyptic number.

It is an amenable number.

7421704453 is a deficient number, since it is larger than the sum of its proper divisors (49810247).

7421704453 is a wasteful number, since it uses less digits than its factorization.

7421704453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49810246.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 7421704453 is about 86149.3148724933. The cubic root of 7421704453 is about 1950.5984972449.

The spelling of 7421704453 in words is "seven billion, four hundred twenty-one million, seven hundred four thousand, four hundred fifty-three".

Divisors: 1 149 49810097 7421704453