Search a number
-
+
384901467421 = 894813898553
BaseRepresentation
bin1011001100111011110…
…10100100110100011101
31100210111110000110000111
411212131322210310131
522301234233424141
6452453222130021
736544134330412
oct5463572446435
91323443013014
10384901467421
111392659313a9
126271a880911
132a3b05736b3
14148b4c50109
15a02b11e381
hex599dea4d1d

384901467421 has 8 divisors (see below), whose sum is σ = 389307506040. Its totient is φ = 380497235712.

The previous prime is 384901467403. The next prime is 384901467463. The reversal of 384901467421 is 124764109483.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110759168025 + 274142299396 = 332805^2 + 523586^2 .

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 384901467421 - 29 = 384901466909 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 (384901407421) 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, 20920 + ... + 877633.

It is an arithmetic number, because the mean of its divisors is an integer number (48663438255).

Almost surely, 2384901467421 is an apocalyptic number.

It is an amenable number.

384901467421 is a deficient number, since it is larger than the sum of its proper divisors (4406038619).

384901467421 is an equidigital number, since it uses as much as digits as its factorization.

384901467421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903455.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 384901467421 in words is "three hundred eighty-four billion, nine hundred one million, four hundred sixty-seven thousand, four hundred twenty-one".

Divisors: 1 89 4813 428357 898553 79971217 4324735589 384901467421