Search a number
-
+
401223413 = 6131720749
BaseRepresentation
bin10111111010100…
…010111011110101
31000221222021001102
4113322202323311
51310203122123
6103451335445
712641225363
oct2772427365
91027867042
10401223413
111965310a8
12b2451585
136517c406
143b402633
1525356028
hex17ea2ef5

401223413 has 8 divisors (see below), whose sum is σ = 409107000. Its totient is φ = 393382080.

The previous prime is 401223283. The next prime is 401223451. The reversal of 401223413 is 314322104.

It can be written as a sum of positive squares in 4 ways, for example, as 89453764 + 311769649 = 9458^2 + 17657^2 .

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 401223413 - 214 = 401207029 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 (401223013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8963 + ... + 29711.

It is an arithmetic number, because the mean of its divisors is an integer number (51138375).

Almost surely, 2401223413 is an apocalyptic number.

It is an amenable number.

401223413 is a deficient number, since it is larger than the sum of its proper divisors (7883587).

401223413 is a wasteful number, since it uses less digits than its factorization.

401223413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21127.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 401223413 is about 20030.5619741434. The cubic root of 401223413 is about 737.5567171932.

Adding to 401223413 its reverse (314322104), we get a palindrome (715545517).

The spelling of 401223413 in words is "four hundred one million, two hundred twenty-three thousand, four hundred thirteen".

Divisors: 1 61 317 19337 20749 1265689 6577433 401223413