Search a number
-
+
1440030359 is a prime number
BaseRepresentation
bin101010111010101…
…0001111010010111
310201100200010021202
41111311101322113
510422121432414
6354520503115
750454025145
oct12565217227
93640603252
101440030359
11679950139
1234231aa9b
1319c456091
14d9372595
15866509de
hex55d51e97

1440030359 has 2 divisors, whose sum is σ = 1440030360. Its totient is φ = 1440030358.

The previous prime is 1440030313. The next prime is 1440030379. The reversal of 1440030359 is 9530300441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1440030359 - 220 = 1438981783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440030379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720015179 + 720015180.

It is an arithmetic number, because the mean of its divisors is an integer number (720015180).

Almost surely, 21440030359 is an apocalyptic number.

1440030359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440030359 is an equidigital number, since it uses as much as digits as its factorization.

1440030359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1440030359 is about 37947.7319348601. The cubic root of 1440030359 is about 1129.2511704106.

The spelling of 1440030359 in words is "one billion, four hundred forty million, thirty thousand, three hundred fifty-nine".