Search a number
-
+
7421076997 = 17735979917
BaseRepresentation
bin1101110100101010…
…01010011000000101
3201011012001202211121
412322111022120011
5110144243430442
63224215233541
7351621053665
oct67225123005
921135052747
107421076997
113169005a94
1215313788b1
13913616c29
1450584a1a5
152d6792967
hex1ba54a605

7421076997 has 8 divisors (see below), whose sum is σ = 7965250776. Its totient is φ = 6888863232.

The previous prime is 7421076961. The next prime is 7421077007. The reversal of 7421076997 is 7996701247.

It can be written as a sum of positive squares in 4 ways, for example, as 525601476 + 6895475521 = 22926^2 + 83039^2 .

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 7421076997 - 219 = 7420552709 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 (7421076197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2988718 + ... + 2991199.

It is an arithmetic number, because the mean of its divisors is an integer number (995656347).

Almost surely, 27421076997 is an apocalyptic number.

It is an amenable number.

7421076997 is a deficient number, since it is larger than the sum of its proper divisors (544173779).

7421076997 is a wasteful number, since it uses less digits than its factorization.

7421076997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5980007.

The product of its (nonzero) digits is 1333584, while the sum is 52.

The square root of 7421076997 is about 86145.6731182710. The cubic root of 7421076997 is about 1950.5435256307.

The spelling of 7421076997 in words is "seven billion, four hundred twenty-one million, seventy-six thousand, nine hundred ninety-seven".

Divisors: 1 17 73 1241 5979917 101658589 436533941 7421076997