Search a number
-
+
6401252923 = 131321372751
BaseRepresentation
bin1011111011000101…
…10101111000111011
3121112010002100012121
411331202311320323
5101102210043143
62535105022111
7314425515652
oct57542657073
917463070177
106401252923
11279538207a
1212a7924937
137b0258730
1444a21c199
15276e977ed
hex17d8b5e3b

6401252923 has 8 divisors (see below), whose sum is σ = 6898894016. Its totient is φ = 5904360000.

The previous prime is 6401252909. The next prime is 6401252927. The reversal of 6401252923 is 3292521046.

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 6401252923 - 221 = 6399155771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6401252927) 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, 169203 + ... + 203548.

It is an arithmetic number, because the mean of its divisors is an integer number (862361752).

Almost surely, 26401252923 is an apocalyptic number.

6401252923 is a deficient number, since it is larger than the sum of its proper divisors (497641093).

6401252923 is a wasteful number, since it uses less digits than its factorization.

6401252923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374085.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 6401252923 is about 80007.8303855316. The cubic root of 6401252923 is about 1856.7566829023.

Adding to 6401252923 its reverse (3292521046), we get a palindrome (9693773969).

The spelling of 6401252923 in words is "six billion, four hundred one million, two hundred fifty-two thousand, nine hundred twenty-three".

Divisors: 1 13 1321 17173 372751 4845763 492404071 6401252923