Search a number
-
+
1451404423 = 7226991381
BaseRepresentation
bin101011010000010…
…1010110010000111
310202011001222120101
41112200222302013
510433024420143
6400004344531
750652506530
oct12640526207
93664058511
101451404423
11685309697
123460a5147
131a19091b1
14daa93687
158764ab4d
hex5682ac87

1451404423 has 8 divisors (see below), whose sum is σ = 1659497120. Its totient is φ = 1243499040.

The previous prime is 1451404403. The next prime is 1451404453. The reversal of 1451404423 is 3244041541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1451404423 - 221 = 1449307271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1451404391 and 1451404400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451404403) 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, 29808 + ... + 61573.

It is an arithmetic number, because the mean of its divisors is an integer number (207437140).

Almost surely, 21451404423 is an apocalyptic number.

1451404423 is a deficient number, since it is larger than the sum of its proper divisors (208092697).

1451404423 is an equidigital number, since it uses as much as digits as its factorization.

1451404423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93657.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1451404423 is about 38097.3020435831. The cubic root of 1451404423 is about 1132.2165028405.

Adding to 1451404423 its reverse (3244041541), we get a palindrome (4695445964).

The spelling of 1451404423 in words is "one billion, four hundred fifty-one million, four hundred four thousand, four hundred twenty-three".

Divisors: 1 7 2269 15883 91381 639667 207343489 1451404423