[go: up one dir, main page]

Search a number
-
+
1231014439 is a prime number
BaseRepresentation
bin100100101011111…
…1100101000100111
310011210101000100101
41021113330220213
510010114430224
6322052524531
742335310244
oct11127745047
93153330311
101231014439
1158196a406
122a4320747
13168063115
14b96c45cb
1573115044
hex495fca27

1231014439 has 2 divisors, whose sum is σ = 1231014440. Its totient is φ = 1231014438.

The previous prime is 1231014377. The next prime is 1231014451. The reversal of 1231014439 is 9344101321.

It is a strong prime.

It is an emirp because it is prime and its reverse (9344101321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1231014439 - 27 = 1231014311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231014539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615507219 + 615507220.

It is an arithmetic number, because the mean of its divisors is an integer number (615507220).

Almost surely, 21231014439 is an apocalyptic number.

1231014439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231014439 is an equidigital number, since it uses as much as digits as its factorization.

1231014439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1231014439 is about 35085.8153532165. The cubic root of 1231014439 is about 1071.7357447959.

The spelling of 1231014439 in words is "one billion, two hundred thirty-one million, fourteen thousand, four hundred thirty-nine".